Linux Sub-volume compression and decompression

1.rar

RAR a-m5-v12m myarchive myfiles # maximum limit of 12M

RAR e Myarchive.part1.rar #解压

Sub-volume compression

There is no default install RAR under Ubuntu, you can install RAR through sudo apt-get install rar,sudo apt-get install Unrar.

After installation, use the following command for volume compression:

RAR a-vsize Compressed file name or folder

For example: RAR a-v50000k eclipse.rar Eclipse

This command is for the Eclipse folder to be compressed, with a size of 50000k per volume and a compressed file named Eclipse.rar

2.tar

An example is provided:

To package the directory logs and split it into multiple 1M files, you can use the following command:

Tar cjf-logs/|split-b 1m-logs.tar.bz2.

When completed, the following files are generated:

Logs.tar.bz2.aa, Logs.tar.bz2.ab, Logs.tar.bz2.ac

To extract it, just execute the following command:

Cat logs.tar.bz2.a* | Tar XJ

Another example:

To compress a file test.pdf into a bytes file:

Tar czf-test.pdf | Split-b 500-test.tar.gz

The last thing to remind you is that the two "-" don't leak, that's the ouput of tar and the parameters of the input of split.

3, with 7z

Also use the above example

In film Upper directory operation, keep film directory name

Compression: 7z a film.7z film-v80m

Extract to current directory: 7z x film.7z.001

Extract to Directory A:mkdir a && CD a && 7z x. /film.7z.001

or 7z-oa x film.7z.001

Film Directory name not preserved

Compact CD film && find. | Xargs 7z a film.7z-v80m

Decompression 7z-oa x film.7z.001

In the case of 7z, the permissions (owner) attribute of the file will be lost, and the following method can be retained:

Compression:

Tar cf-film | 7z A-Si film.tar.7z-v80m

Decompression:

7z x-so film.tar.7z.001 | Tar XF-