| WHICH(1) | General Commands Manual | WHICH(1) | 
NAME
 which — locate a program file in the users $PATH environment variable
DESCRIPTION
 which takes a list of names and looks for the files which would be executed had these names been given as commands. Each argument is searched for along the user's 
PATH.
If the -a flag is given, which will continue to search the PATH until all instances of a program file are found.
 
HISTORY
 The which command appeared in 3.0BSD.
BUGS
 This implementation does not expand 
csh(1) aliases, and is shell agnostic. This is really a feature.