bzip2

Compress and decompress files

Syntax:

Compress and decompress files:

bzip2 [options] [files...]

Decompress files:

bunzip2 [options] [files...]

Decompress files to standard output:

bz2cat [options] [files...]

Options:

-1 ... -9

Set the blocksize to 100k ... 900k.

-c

Send output to standard output.

-d

Force decompression.

-f

Force the utility to overwrite existing output files.

-h

Display a help message.

-k

Keep (i.e. don't delete) input files.

--repetitive-best

Compress repetitive blocks better.

--repetitive-fast

Compress repetitive blocks faster.

-s

(Small) use less memory (at most 2500K).

-t

Test the integrity of the compressed file.

-v

Verbose output; a second v makes the utility more verbose.

-z

Force compression.

Description:

This utility compresses and decompresses files:

• If invoked as bzip2, the default action is to compress.
• As bunzip2, the default action is to decompress.
• As bz2cat, the default action is to decompress to stdout.

If no file names are given, bzip2 compresses or decompresses from standard input to standard output.

See also:

freeze, gzip, pax, tar

Backing Up and Recovering Data in the Neutrino User's Guide