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A comment on Xkcd: tar.

Re:Xkcd: tar by jaysh on Monday August 10, 2015 @11:11AM (#10035098)
Fun fact: "tar xf FILENAME" will auto-detect the compression when extracting FILENAME. You don't actually need to specify "z" for gzip, "j" for bzip, etc.
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Re:Xkcd: tar by antientropic on Monday August 10, 2015 @11:14AM (#10035116)
That's GNU tar specific, though.
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Re:Xkcd: tar by craftkiller on Monday August 10, 2015 @11:49AM (#10035381)
Works in modern bsdtar also, and as of a couple years ago they also added support for the "-a" flag to do the same thing when compressing.
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