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Comment by Baal | Hacker News Reader

No need for the ‘z’ :)

Yeah, tar is actually pretty simple these days. (At least GNU tar, don't know about other tars.) In 99.9% of cases you only need to know the following:

  tar caf $archive $file...      to create
  tar xf $archive                to extract

"x" will automatically recognize the compression format, and "ca" will automatically infer the desired compression format from the extension in $archive, e.g.

  tar caf backup.tar.xz /home/user

makes an xz-compressed tarball.

I still prefer to pipe through a compression program on principle. tar has no good reason to messing around with compression, per the Unix single-function philosophy.

to people who grew up with archive programs, "making all of this into a single file" and "compressing all of this" is the same thing; requiring two commands is counterintuitive

tar has trained us so well: "... tar is actually pretty simple these days"

You need it if you're processing stdin (curl ...file.tgz | tar xz)

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