igzip1

Usage

Overview

Compress or decompress files similar to gzip using the ISA-L fast deflate library.

Output .gz files are compatible with gzip and [RFC-1952].

Options are similar to gzip except --keep is default.

Options

-h, --help

help, print this message

-#

use compression level # with 0 <= # <= 3

-o

<file> output file

-c, --stdout

write to stdout

-d, --decompress

decompress file

-z, --compress

compress file (default)

-f, --force

overwrite output without prompting

--rm

remove source files after successful (de)compression

-k, --keep

keep source files (default)

-S, --suffix <.suf>

suffix to use while (de)compressing

-V, --version

show version number

-v, --verbose

verbose mode

-N, --name

save/use file name and timestamp in compress/decompress

-n, --no-name

do not save/use file name and timestamp in compress/decompress

-t, --test

test compressed file integrity

-T, --threads <n>

use n threads to compress if enabled

-q, --quiet

suppress warnings

with no infile, or when infile is - , read standard input

Examples

Make compressed file1.gz and file2.gz and keep file1 and file2.

Piped compression and decompression.

Streaming compression from output of tar, compress level 2.