Mine
public text v1 · immutableroot@ubuntu704desktop:/# whereis perl
perl: /usr/bin/perl /etc/perl /usr/lib/perl /usr/X11R6/bin/perl /usr/bin/X11/perl /usr/share/perl /usr/share/man/man1/perl.1.gz
root@ubuntu704desktop:/#
root@ubuntu704desktop:/# whereis perl
perl: /usr/bin/perl /etc/perl /usr/lib/perl /usr/X11R6/bin/perl /usr/bin/X11/perl /usr/share/perl /usr/share/man/man1/perl.1.gz
root@ubuntu704desktop:/#