Name
which — stdin stdout - file -- opt --help --version
Synopsis
which file
The which
command locates an
executable file in your shell’s search path. If you’ve been invoking a
program by typing its name:
➜ who
the which
command tells you
where this command is located:
➜ which who
/usr/bin/who
You can even find the which
program itself:
➜ which which
/usr/bin/which
If several programs in your search path have the same name (for
example, /usr/bin/who and
/usr/local/bin/who), which
reports only the first.
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