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Changing ownership when extracting tar


I use the following to extract files:
      tar -xvf

The problem is that my files were tarred from a place where a owner user was called "olduser" and only that owner had permissions over most of the files.

"olduser" does not exist on my new box, it has been replaced with the owner of "newuser"

How can I extract the files, but at the same time replace all ownership from "olduser" to "newuser" ?
LinuxLinux Distributions

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Kelly Black

8/22/2022 - Mon
Duncan Roe

su to "newuser" then do the extract. Only root has the ability to change usernames, so in this case you do *not* want to have an EUID (effective User Id) of root.

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on gnu tar you could just add the

"--owner USER" to the tar command.

Duncan Roe

Is your problem that you've already done the restore and now the ownerships are wrong?
In that case, as root do:
   cd ~"newuser"; chown -R "newuser" .
Then all the files in the "newuser" tree will be owned by "newuser"
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William Peck
Kelly Black

Try doing

tar -zxvf filename.tar.gz | xargs chown userid.userid
Kelly Black

No actually I think you'll have to filter that but you get the idea?