List the contents of the files.tar
tar archive.
You can use this short tar command.
tar -tvf files.tar
Or this more verbose tar command.
tar --list --verbose --file files.tar
-t
or --list
tells tar to extract an existing archivev
or --verbose
tells tar to produce verbose outputf
or --file
tells tar that the next parameter will be the tar file to create, extract, append to, list, etc.