Linux in a Nutshell, Fifth Edition

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Chapter 3: Linux Commands

This is the Title of the Book, eMatter Edition

Copyright © 2006 O’Reilly & Associates, Inc. All rights reserved.

-v, --verbose

Verbose mode. Show the compression ratio for each file

processed. Add more -v’s to increase the verbosity.

-z, --compress

Force compression, even if invoked as bunzip2 or bzcat.

-1, --fast

Perform fast compression, creating a relatively large file. This

has no effect on decompression. Higher numbers, up to 9,

create progressively better-compressed files. See -9, --best.

-9, --best

Get the best possible compression, although it will take longer.

Examples

To produce two files: fileone.txt.bz2 and filetwo.ppt.bz2, while

deleting the two original files:

bzip2 fileone.tzt filetwo.ppt

To produce a single compressed file, output.bz2, which can be

decompressed to reconstitute the original fileone.txt and filetwo.txt:

bzip2 -c fileone.txt filetwo.txt > output.bz2

The tar command, combined with the -j or --bzip2 option, creates

the output file nutshell.tar.bz2:

tar -cjf nutshell.tar.bz2 /home/username/nutshell

bzless

bzless [options] file

Applies less to datafiles in the bzip2 format without requiring on-

disk decompression. See bzip2 and less for usage.

bzmore

bzmore [options] file

Applies more to datafiles in the bzip2 format without requiring on-

disk decompression. See bzip2 and more for usage.

c++

c++ [options] files

See g++.

c++filt

c++filt [options] [symbol]

Decode ...