Can't run bash or sudo commands
I have a Mac Pro with OS X 10.8.2 and also an older iMac running OS X 10.6.8. On neither Mac can I run any bash or sudo commands! I always get command not found.
Both Macs have fresh installs of OS X, did I forget to install something? Is X11 needed? or Xcode?
Thanks for any help.
Mac Pro, Mac OS X (10.7.4)