Linux bzip2 Command

Linux Command Manual

The Linux bzip2 command is a compression program for .bz2 files.

bzip2 employs a new compression algorithm that provides better compression results than traditional LZ77/LZ78 algorithms. Without any parameters, bzip2 compresses files into .bz2 files and deletes the original files.

Syntax

bzip2 [-cdfhkLstvVz][--repetitive-best][--repetitive-fast][-compression level][files to compress]

Parameters:

-c or --stdout: Output the results of compression or decompression to standard output.
-d or --decompress: Perform decompression.
-f or --force: By default, bzip2 does not overwrite existing files with the same name during compression or decompression. Use this parameter to overwrite.
-h or --help: Display help.
-k or --keep: bzip2 deletes the original files after compression or decompression. Use this parameter to keep the original files.
-s or --small: Reduce memory usage during program execution.
-t or --test: Test the integrity of .bz2 compressed files.
-v or --verbose: Display detailed information during file compression or decompression.
-z or --compress: Force compression.
-L, --license,
-V or --version: Display version information.
--repetitive-best: Improve compression effectiveness if the file contains repetitive data.
--repetitive-fast: Speed up execution if the file contains repetitive data.
-compression level: Block size during compression.

Examples

Decompress .bz2 file

[[email protected] ~]# bzip2 -v temp.bz2 // Decompress file and display detailed processing information

Compress files

[[email protected] ~]# bzip2 -c a.c b.c c.c

Check file integrity

[[email protected] ~]# bzip2 -t temp.bz2

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