       whence [ -vcfpam ] name ...
              For each name, indicate how it would be interpreted
              if  used as a command name.  The -v flag produces a
              more  verbose  report.   The  -c  flag  prints  the
              results  in a csh-like format, and takes precedence
              over -v.  The -f flag  causes  the  contents  of  a
              shell  function to be displayed, which would other-
              wise not happen unless the -c flag were used.   The
              -p  flag  does a path search for name even if it is
              an alias, reserved word, shell function or builtin.
              The  -a  flag  does a search for all occurrences of
              name throughout the command path.  With the -m flag
              the  arguments  are  taken  as  patterns (should be
              quoted) and the information is displayed  for  each
              command matching one of these patterns.

       type [ -fpam ] name ...
              Same as whence -v.

       where  Same as whence -ca.

       which [ -pam ] name ...
              Same as whence -c.

 