A2osX/HELP/which.txt
2022-12-02 13:14:00 -05:00

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TITLE
A2osX which (bin/which) Command Help
which -- locate a program file in the user's path
SYNOPSIS
which program ...
DESCRIPTION
The which utility takes a list of command names and searches the path for
each and will report back which specific executable would have been picked
up if the command was actually run.
The which utility accepts the following options:
-a List all instances found instead of just the first one.
-s No output, just return 0 if all programs are found, or 1 if
some were not found.
PAGE
EXAMPLES
Locate the cp and ls commands:
# which cp ls
/FULL32/bin/cp
/FULL32/bin/ls
Do not show output, just return code:
# which -s seq
# echo $?
0
# which -s fakecmd
# echo $?
1
HISTORY
The which command first appeared in FreeBSD 2.1 and was a Perl script
written by Wolfram Schneider <wosch@FreeBSD.org>. The A2osX which command
was developed by Brian J. Bernstein <brian@dronefone.com> in Dec 2022.