[NTLUG:Discuss] in a world where grep doesn't have the -m (match) option..

[Rick Renshaw]

--- Geoffrey Climer <gclimer at gmail.com> wrote:
> What about "bzip2 -d" ?  Isn't that the same as "tar -j"?

No, they're not the same.  -d just forces bzip2 to run in decompress mode.  What that means is if
you have a file: file.tar.bz2, and you run 'bzip2 -d file.tar.bz2', you have 'file.tar' left.  It
uncompresses the file in place.  BTW, bunzip2 is usually a hard link to the same executable as
bzip2, and will decompress by default unlike bzip2.  To function like tar -j, you have to
decompress to stdout (-c) and then pipe that to tar and untar stdin:  'bunzip2 -c file.tar.bz2 |
tar xvf -'


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