bob@mybox:~
$ sudo -u sexec /tmp/fakebin/cmd.pl
Secret command output.
bob@mybox:~
$ cat /tmp/fakebin/cmd.pl
cat: /tmp/fakebin/cmd.pl: Permission denied
bob@mybox:~
$ sudo -u sexec /bin/cat /tmp/fakebin/cmd.pl
Password:
Sorry, user bob is not allowed to execute '/bin/cat /tmp/fakebin/cmd.pl' as sexec on mybox.localdomain.tld.