Naming of Compressed Tar Files
"TGZ" redirects here. For other uses, see TGZ (disambiguation).tar archive files usually have the extension .tar, as in somefile.tar. The pun, tarball, is used to refer to a tar file.
A tar archive file contains uncompressed byte streams of the files which it contains. To achieve archive compression, a variety of compression programs are available, such as gzip, bzip2, xz, lzip, lzma, or compress, which compress the entire tar archive. Typically, the compressed form of the archive receives a filename by appending the format-specific compressor suffix to the archive file name. For example, a tar archive archive.tar, is named archive.tar.gz, when it is compressed by gzip.
Popular tar programs like the BSD and GNU versions of tar support the command line options Z (compress), z (gzip), and j (bzip2) to automatically compress or decompress the archive file upon creation or unpacking. GNU tar from version 1.20 onwards also supports --lzma (LZMA). 1.21 also supports lzop via --lzop, 1.22 adds support for xz via --xz or -J, and 1.23 adds support for lzip via --lzip.
MS-DOS's 8.3 filename limitations, resulted in additional conventions for naming compressed tar archives. (This practice has declined with FAT offering long filenames.)
| Short | Long |
|---|---|
.tgz |
.tar.gz |
.tbz, .tbz2 & .tb2 |
.tar.bz2 |
.taz |
.tar.Z |
.tlz |
.tar.lz |
.txz |
.tar.xz |
Read more about this topic: Tar (computing)
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