which: Option Summary
3 Option Summary
****************
'--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.