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I have been trying to extract a file from a tgz archive for hours.

Using tar -xzf my.tgz ./file.sh extract the file properly. However, an installation script I am using is extracting the file differently, using tar xfzO my.tgz ./file.sh > /tmp/file.sh.

In the first case, tar complete correctly, extracting the file as intended. In the second case however, it output a message informing me that ./file.sh was not found in the archive. Strangely, tar --list ./file.sh -f my.tgz output that the file doesn't exist, but then why is it successfully extracted the first time ?

How can I extract my file, using the second method properly ? Why is tar not finding it, despite it being there ?

  • What happens if you remove the preceding ./? – undercat applauds Monica Aug 16 '18 at 15:35
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    Did you try to use a correct command line? Your command line tells a correct TAR to open zO as archive. – schily Aug 16 '18 at 16:06
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The order of commands to tar is significant. Specifically: the argument directly after the f must be the tar-archive. Try:

tar xzOf my.tgz ./file.sh > /tmp/file.sh
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