UNIX : File archives and compression
- compress filename : make filename smaller (compression). filename will be replaced by filename.Z).
- gunzip filename.gz : expand filename.gz into its original form (size) and remove the .gz extension. This is GNU unzip.
- gzip filename : compress filename with GNU zip (gzip) and add .gz extension mt magnetic tape control program.
- tar : combine files into one tar file, or extract files from a tar file. A tar file could be a device (magnetic tape as /dev/rst0) or a plain file. To extract filename.tar tar xvf filename.tar To combine all files under dirname into filename.tar
tar cvf filename.tar dirname - uncompress filename.Z : expand filename.Z into its original size and remove the .Z extension
- unarj filename.arj : exteract files from an ARJ archive
- unzip filename.zip : extract files from filename.zip. The reverse of zip command.
- zip zipname files : create an archive file (and compress it) called zipname.zip which contains files.
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