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which [commands ]

List which files are executed if the named commands are run as a command. which reads the user's .cshrc file (using the source built-in command), checking aliases and searching the path variable. Users of the Bourne or Korn shells can use the built-in type command as an alternative. (See type , Chapter 4 and Chapter 5 .)


$ which file ls

ls:      aliased to ls -sFC

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