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Old 08-23-2009, 05:22 PM   #1
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is checksum necessary for tar, gzip, zip?

Is checksumming necessary when archiving or communicating tar, gzip, and zip files, or do they have built-in checksums? I can't find clear answers in the manpages. For example, how much testing is actually done by gzip --test?
Old 08-23-2009, 08:01 PM   #2
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As far as I know they don't do checksumming. This is something you can do with md5sum or sha1sum yourself:
sha1sum filename > filename.sha1
md5sum filename > filename.md5
Is that what you were looking for, or were you interested in checksumming the individual files within the archive?


checksum, gzip, tar, zip

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