@item Extract @file{usr/} hierarchy into @file{usr/local/}:
@smallexample
-$ @kbd{tar --transform='s,usr/,usr/local/,' -x arch.tar}
+$ @kbd{tar --transform='s,usr/,usr/local/,' -x -f arch.tar}
@end smallexample
@item Strip two leading directory components (equivalent to
@option{--strip-components=2}):
@smallexample
-$ @kbd{tar --transform='s,/*[^/]*/[^/]*/,,' -x arch.tar}
+$ @kbd{tar --transform='s,/*[^/]*/[^/]*/,,' -x -f arch.tar}
@end smallexample
@item Prepend @file{/prefix/} to each file name:
@smallexample
-$ @kbd{tar --transform 's,^,/prefix/,' -x arch.tar}
+$ @kbd{tar --transform 's,^,/prefix/,' -x -f arch.tar}
@end smallexample
@item Convert each file name to lower case:
@smallexample
-$ @kbd{tar --transform 's/.*/\L&/' -x arch.tar}
+$ @kbd{tar --transform 's/.*/\L&/' -x -f arch.tar}
@end smallexample
@end enumerate
$ @kbd{tar -cf arch.tar --transform='s,^usr/,var/,' \
--verbose --show-transformed-names /}
@end smallexample
+
+If both @option{--strip-components} and @option{--transform} are used
+together, then @option{--transform} is applied first, and the required
+number of components is then stripped from its result.
@node after
@section Operating Only on New Files