IGZIP(1) User Commands IGZIP(1)

# [NAME](#NAME)

igzip - compress or decompress files similar to gzip

# [SYNOPSIS](#SYNOPSIS)

**igzip** \[*options*] \[*infiles*]

# [DESCRIPTION](#DESCRIPTION)

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](#OPTIONS)

[**-h**, **--help**](#h)

help, print this message

-#

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

[**-o**](#o)

<file> output file

[**-c**, **--stdout**](#c)

write to stdout

[**-d**, **--decompress**](#d)

decompress file

[**-z**, **--compress**](#z)

compress file (default)

[**-f**, **--force**](#f)

overwrite output without prompting

[**--rm**](#rm)

remove source files after successful (de)compression

[**-k**, **--keep**](#k)

keep source files (default)

[**-S**, **--suffix** <.suf>](#S)

suffix to use while (de)compressing

[**-V**, **--version**](#V)

show version number

[**-v**, **--verbose**](#v)

verbose mode

[**-N**, **--name**](#N)

save/use file name and timestamp in compress/decompress

[**-n**, **--no-name**](#n)

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

[**-t**, **--test**](#t)

test compressed file integrity

[**-T**, **--threads** <n>](#T)

use n threads to compress if enabled

[**-q**, **--quiet**](#q)

suppress warnings

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

# [EXAMPLES](#EXAMPLES)

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

**igzip file1 file2**

Piped compression and decompression.

**igzip -c file.txt | igzip -d -c -**

Streaming compression from output of tar, compress level 2.

**tar cf - dir1 | igzip -2 > dir1.tar.gz**

# [REPORTING BUGS](#REPORTING_BUGS)

Report bugs to https://github.com/intel/isa-l/issues

December 2024 igzip 2.31.1

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Document: igzip(1) from isa-l 2.32.1-r5 (Chainguard OS)
Source: https://github.com/intel/isa-l