head1
Display first lines of a file
Usage
head [{-n
count | -c
bytes}]
[file ...]
Overview
This filter displays the first count lines or bytes of each of the specified files, or of the standard input if no files are specified. If count is omitted it defaults to 10.
The following options are available:
-
-c bytes, --bytes=bytes -
Print bytes of each of the specified files.
-
-n count, --lines=count -
Print count lines of each of the specified files.
If more than a single file is specified, each file is preceded by a header consisting of the string “==> XXX <==” where “XXX” is the name of the file.
Exit status
The head utility exits 0 on success, and >0 if an error occurs.
Examples
To display the first 500 lines of the file foo:
$ head -n 500 foo
head can be used in conjunction with tail(1) in the following way to, for example, display only line 500 from the file foo:
$ head -n 500 foo | tail -n 1
Releases
163 releases since Mac OS X 10.0; the text changed 2 times.
--bytes since macOS 12.0.1;
--lines since macOS 12.0.1;
-c since macOS 12.0.1;
-n since macOS 12.0.1.
See also
Referred to by
sh(1)
command interpreter (shell)
cat(1)
concatenate files and print on the standard output
tail(1)
output the last part of files
hx(1)
Futuristic take on hexdump, made in Rust.
buthead(1)
copies all but the first few lines
pmccabe(1)
calculate McCabe cyclomatic complexity or non-commented line counts for C and C++ programs
parseSNP(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
sim4dbutils(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
headPolishes(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
sortPolishes(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
uniqPolishes(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
vennPolishes(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
cleanPolishes(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
convertToAtac(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
detectChimera(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
mergePolishes(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
filterPolishes(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
fixPolishesIID(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
mappedCoverage(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
pickBestPolish(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
comparePolishes(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
convertPolishes(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
convertToExtent(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
depthOfPolishes(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
realignPolishes(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
removeDuplicate(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
pickUniquePolish(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
summarizePolishes(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
plotCoverageVsIdentity(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes
reportAlignmentDifferences(1)
utilities to work with sim4db-generated alignment files convertPolishes - convert between sim4db and GFF3 formats filterPolishes - filter alignments based on sequence identity, coverage and length. mergePolishes - merge alignments from multiple files sortPolishes - sort alignments by cDNA or genomic sequence index or sequence name convertToExtent - Convert from sim4db format to a single-line tab-delimited format fixPolishesIID - Updates a sim4db file to use the sequence index of a specific fasta file. Can also be used to extract a subset of the alignments from the sim4db file. depthOfPolishes - Outputs a tab-delimited histogram of the depth of polishes at various window sizes. headPolishes - print the first N alignments in a file, similar to head(1) pickBestPolish - report only the 'best' alignment for each cDNA pickUniquePolish - reports alignments where there is a clear single best alignment for each cDNA. plotCoverageVsIdentity - Generates (1) a histogram of the percent identity, (2) a histogram of the percent coverage, and (3) a list of percent identity and coverage (for use in a scatter plot). uniqPolishes - Filters out all alignments for cDNA with multiple alignments (-uniq) or with a single alignment (-dupl). Similar to uniq(1) realignPolishes - recompute the alignments listed in a sim4db file. reportAlignmentDifferences - generates a histogram of the types of errors in a set of alignments Unsupported and Deprecated comparePolishes - Correlate alignments in two files. convertToAtac - Converts from sim4db format to ATAC format. detectChimera - Examines alignments for sequences that might be chimeric. mappedCoverage - Reports the amount of the query sequence (EST, cDNA) that is covered by alignments. parseSNP - Analyzes alignments for SNPs. removeDuplicate - searches the input for duplicate alignments. vennPolishes - Generates a Venn diagram for multiple sim4db files. Used internally by ESTMapper cleanPolishes summarizePolishes