which - Locates a program file including aliases and paths
The which command takes a list of program names and looks
for the files that would be executed if these names were
given as commands.
Each program argument is expanded if it is aliased and
searched for along your path. Both the aliases and path
are taken from your file. If you do not have a file, the
path is the current PATH from your environment.
The which command is written in csh script language and
only works in the C shell. The ksh program offers the
built-in commands type and whence that perform the same
function as which. The sh built-in command type can also
Read at beginning of execution by each shell.
A diagnostic is given if an executable file with the argument
name was not found in the path.
[ Back ]