| Rev | Author | # | Line |
|---|---|---|---|
| 16 | BruceKingsbury | 1 | __Note:__ "zcat" is also the nickname of BruceKingsbury. ([homepage|http://zcat.geek.nz/]) |
| 15 | MattBrown | 2 | <?plugin WlugLicenseAgreement hide=1 ?> |
| 10 | AristotlePagaltzis | 3 | ---- |
| 11 | JohnMcPherson | 4 | __zcat__ is used for decompressing ".gz" zipped files and writing them to standard output. It behaves exactly as if you had typed "gzip -d -c" instead (-d decompresses, -c writes to stdout). |
| 8 | zcat(1) | 5 | |
| 11 | JohnMcPherson | 6 | On most systems, zcat is a link to gzip, and gzip behaves differently based on what name it was executed as. |
| 8 | zcat(1) | 7 | |
| 11 | JohnMcPherson | 8 | See the gzip(1) man page. |
| 8 | zcat(1) | 9 | |
| 10 | ---- | ||
| 11 | JohnMcPherson | 11 | !!User Comments |
| 8 | zcat(1) | 12 | |
| 13 | |||
| 14 | someone was searching for examples for zcat, so well, why disappoint? | ||
| 15 | $ ls | ||
| 16 | interestingfile.txt.gz | ||
| 17 | $ zcat interestingfile.txt.gz | ||
| 18 | this is a compressed interesting text file | ||
| 19 | |||
| 20 | For the examples above I'd probably use zless, since if a textfile was worthy of being compressed it's likely to have been very large to begin with. | ||
| 21 | |||
| 22 | There aren't many places where 'zcat' is the shortest command for the job. Eg. "zcat foo.tgz | tar x" is probably better done by the command "tar xzf foo.tgz" | ||
| 23 | |||
| 24 | Probably the best example I can think of would be; | ||
| 25 | $ zcat patch-x.y.z.gz | patch -p0 | ||
| 26 | |||
| 27 | Patches are usually compressed, and patch(1) doesn't have a 'compressed' switch like tar(1) does.. | ||
| 12 | AdamPippin | 28 | |
| 29 | |||
| 30 | Another example (make sure to have your speakers on!): | ||
| 31 | $ zcat /vmlinuz > /dev/audio | ||
| 13 | zcat(1) | 32 | (BruceKingsbury notes; this is a pointless example at best, the difference between compressed and uncompressed executable code, or /dev/urandom for that matter, piped into /dev/audio is fairly insignificant. Also; zcat: /boot/vmlinuz-2.6.5: not in gzip format) |
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