zck_delta_size1
Calculate the differences between two zchunk files
Usage
zck_delta_size [{-v | --verbose}]
file1
file2
zck_delta_size {-? | --help | --usage | --version}
Overview
The zck_delta_size utility examines two zchunk compressed files and determines how similar they are: how many chunks are the same between the files, so that tools like e.g. rsync(1) or zckdl(1) could only transfer the small parts that differ instead of the full files. This is especially useful for structured files that have been compressed using the zck(1) tool's -s (--split) option.
The zck_delta_size utility accepts the following optional arguments:
-
-v, --verbose -
Verbose operation; display some diagnostic output.
-
-?, --help -
Display program usage information and exit.
-
--usage -
Display brief program usage information and exit.
-
--version -
Display program version information and exit.
Exit status
The zck_delta_size utility exits 0 on success, and >0 if an error occurs.
Examples
Examine two zchunk files:
zck_delta_size doc1.txt.zck doc2.txt.zck
Releases
Unchanged in 4 releases since Debian 11 (Bullseye).