I can recall my professor saying it means "Tar-able Gzip." I'm searching it in Google and couldn't find it. I know what Tar and Gzip are. I also know what a TGZ is, but I want to know the meaning of the acronym. I'm really curious whether it is correct or not.



tgz is often used as a file name suffix of tar archives that have been compressed using gzip, possibly by compressing it at creation time using tar -cz.

It is just a contraction of tar.gz, which would be the suffix you would get if you first created a tar archive and then compressed it with gzip.

On filesystems that enforces the old "8.3" naming rules of DOS, using tgz as the file name suffix would enable one to store these files too.

If it "means" anything, it means "gzip-compressed tar archive". Just remember that in Unix, file name suffixes do not determine the format of the contents (it's just a help to the user). It used to be that many web browsers, for example, would download and decompress files while retaining the original name and suffix.

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    It was particularly useful on systems with three-letter file extensions (like DOS). – Stephen Kitt Apr 29 '17 at 12:06
  • So it's not "Tar-able G-Zip"? – Jeano Ermitaño Apr 29 '17 at 12:16
  • @JeanoErmitaño Well, it's certainly "tar-able" (as any other file), and it is a gzip-ed file, but it would be better to say "gzip-ed tar-file" or similar. – Kusalananda Apr 29 '17 at 12:18
  • @Jeano “tar-able gzip” makes it sound like it’s a gzip file that can be tar-red, but it’s the other way round: first you tar files up into a tarball, then you compress it with gzip. – Stephen Kitt Apr 29 '17 at 12:24
  • Maybe my professor was just using it as a mnemonic to help him remember. I agree it would be better to call it that, since it is a Tar file that is compressed with Gzip, it provides more information about the extension anyways. – Jeano Ermitaño Apr 29 '17 at 12:24

tgz is the extension of file which is archived by tar and compress by gzip.

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