which

/usr/ucb/which

 [

commands

]

List which files would be executed if the named commands had been run as a command. which reads the user's .cshrc file, checking aliases and searching the path variable. Users of the Bourne or Korn shells can use the built-in type command as an alternative.

Example

which cc ls
/usr/ucb/cc
ls:      aliased to ls -sFC