NAME¶

igzip - compress or decompress files similar to gzip

SYNOPSIS¶

igzip [options] [infiles]

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.

-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
-q, --quiet: suppress warnings

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

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

December 2018

igzip command line interface 2.25.0