09-17-2001
just remember that if you are using the find command and your start your search at /, then one should be the superuser to execute. otherwise, as a regular user one will get a lot of "permission denied" error messages because regular users don't have permissions to search or "look" in a lot of directories under the root directory(especially under /usr).
just my two cents because once again, I learned this the hard way
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WHICH(1) BSD General Commands Manual WHICH(1)
NAME
which -- locate a program file in the user's path
SYNOPSIS
which [-as] program ...
DESCRIPTION
The which utility takes a list of command names and searches the path for each executable file that would be run had these commands actually
been invoked.
The following options are available:
-a List all instances of executables found (instead of just the first one of each).
-s No output, just return 0 if all of the executables are found, or 1 if some were not found.
Some shells may provide a builtin which command which is similar or identical to this utility. Consult the builtin(1) manual page.
SEE ALSO
builtin(1), csh(1), find(1), locate(1), whereis(1)
HISTORY
The which command first appeared in FreeBSD 2.1.
AUTHORS
The which utility was originally written in Perl and was contributed by Wolfram Schneider <wosch@FreeBSD.org>. The current version of which
was rewritten in C by Daniel Papasian <dpapasia@andrew.cmu.edu>.
BSD
December 13, 2006 BSD