# All similar in functionality
`tar czf /tmp/stuff.tar.gz /stuff`
open ("tar czf /tmp/stuff.tar.gz /stuff");
system ("tar czf /tmp/stuff.tar.gz /stuff");
system ("tar", "czf", "/tmp/stuff.tar.gz", "/stuff");

# Don't search path, specify explicitly
system ("/bin/tar", "czf", "/tmp/stuff.tar.gz", "/stuff");