Date: Wed, 7 Oct 92 14:28:18 -0500

5.3)  Do all shells have aliases?  Is there something else that can be used?

      All of the major shells other than sh have aliases, but they
      don't all work the same way.  For example, some don't accept
      arguments.
      
      Although not strictly equivalent, shell functions (which exist in
      most shells from the Bourne shell category) have almost the same
      functionality of aliases.  Shell functions can do things that
      aliases can't do.  Shell functions did not exist in bourne shells
      derived from Version 7 Unix, which includes System III and BSD 4.2.
      BSD 4.3 and System V shells do support shell functions.
      
      Use unalias to remove aliases and unset to remove functions.

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