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4 --all, -a Print all matching executables in PATH, not just the first.
--read-alias, -i Read aliases from stdin, reporting matching ones on stdout. This is useful in combination with using an alias for which itself. For example
alias which=\'alias | which -i\'.
--skip-alias Ignore option \`--read-alias\', if any. This is useful to explicity search for normal binaries, while using the \`--read-alias\' option in an alias or function for which.
--read-functions Read shell function definitions from stdin, reporting matching ones on stdout. This is useful in combination with using a shell function for which itself. For example:
which() { declare -f | which --read-functions $@ }
export -f which
--skip-functions Ignore option \`--read-functions\', if any. This is useful to explicity search for normal binaries, while using the \`--read-functions\' option in an alias or function for which.
--skip-dot Skip directories in PATH that start with a dot.
--skip-tilde Skip directories in PATH that start with a tilde and executables which reside in the HOME directory.
--show-dot If a directory in PATH starts with a dot and a matching executable was found for that path, then print "./programname" rather than the full path.
--show-tilde Output a tilde when a directory matches the HOME directory. This option is ignored when which is invoked as root.
--tty-only Stop processing options on the right if not on tty.
--version,-v,-V Print version information on standard output then exit successfully.
--help Print usage information on standard output then exit successfully.
which () { (alias; declare -f) | /usr/bin/which --tty-only --read-alias --read-functions --show-tilde --show-dot $@ } export -f which[t]csh:
alias which \'alias | /usr/bin/which --tty-only --read-alias --show-dot --show-tilde\'This will print the readable ~/ and ./ when starting which from your prompt, while still printing the full path when used from a script:
> which q2 ~/bin/q2 > echo \`which q2\` /home/carlo/bin/q2
Carlo Wood <carlo@gnu.org>