Gzip: Difference between revisions
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m New page: gzip is a compression program. Its compressed programs have a .gz extension often in association with .tar.gz which is a compressed tarball. To decompress one uses gunzip at which the .t... |
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tar -xvzf file.tar.gz would decompress based on the -z flag. | tar -xvzf file.tar.gz would decompress based on the -z flag. | ||
$ ls -l termcap | |||
-r--r--r-- 1 pjp wheel 732942 May 30 20:13 termcap | |||
$ gzip termcap | |||
$ ls -l termcap.gz | |||
-r--r--r-- 1 pjp wheel 235552 May 30 20:13 termcap.gz | |||
$ gzip termcap.gz | |||
gzip: termcap.gz already has .gz suffix -- unchanged | |||
Notice the compression on a textfile was about 3:1, but you cannot compress a compressed file again. | |||
Revision as of 08:17, 30 May 2008
gzip is a compression program. Its compressed programs have a .gz extension often in association with .tar.gz which is a compressed tarball. To decompress one uses gunzip at which the .tar is left to itself. Often one can also call gunzip from tar itself
tar -xvzf file.tar.gz would decompress based on the -z flag.
$ ls -l termcap -r--r--r-- 1 pjp wheel 732942 May 30 20:13 termcap $ gzip termcap $ ls -l termcap.gz -r--r--r-- 1 pjp wheel 235552 May 30 20:13 termcap.gz $ gzip termcap.gz gzip: termcap.gz already has .gz suffix -- unchanged
Notice the compression on a textfile was about 3:1, but you cannot compress a compressed file again.
