NAME¶

igzip - compress or decompress files similar to gzip

SYNOPSIS¶

igzip [options] [infiles]

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¶

-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.

REPORTING BUGS¶

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