Linux in a Nutshell, Fifth Edition

bzip2 | 65

Linux

Commands

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bzip2

bzip2 [options] filenames

bunzip2 [options] filenames

bzcat [option] filenames

bzip2recover filenames

File compression and decompression utility similar to gzip, but

uses a different algorithm and encoding method to get better

compression. bzip2 replaces each file in filenames with a

compressed version of the file and with a .bz2 extension appended.

bunzip2 decompresses each file compressed by bzip2 (ignoring

other files, except to print a warning). bzcat decompresses all spec-

ified files to standard output, and bzip2recover is used to try to

recover data from damaged files.

Additional related commands include bzcmp, which compares the

contents of bzipped files; bzdiff, which creates diff (difference) files

from a pair of bzip files; bzgrep, to search them; and the bzless and

bzmore commands, which apply the more and less commands to

bzip output, as bzcat does with the cat command. See cat, cmp,

diff, and grep for information on how to use those commands.

Options

-- End of options; treat all subsequent arguments as filenames.

-dig

Set block size to dig × 100 KB when compressing, where dig is

a single digit from 1 to 9.

-c, --stdout

Compress or decompress to standard output.

-d, --decompress

Force decompression.

-f, --force

Force overwrite of output files. Default is ...