Интерактивная система просмотра системных руководств (man-ов)
>> pwhich (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
pwhich - Perl-only `which'
$ pwhich perl
$ pwhich -a perl # print all matches
$ pwhich perl perldoc ... # look for multiple programs
$ pwhich -a perl perldoc ...
`pwhich' is a command-line utility program for finding paths to other
programs based on the user's "PATH". It is similar to the usualy Unix
tool `which', and tries to emulate its functionality, but is written
purely in Perl (uses the module "File::Which"), so is portable.
$ pwhich [-a] [-v] programname [programname ...]
The option -a will make "pwhich" print all matches found in the
"PATH" variable instead of just the first one. Each match is printed
on a separate line.
Prints version (of "File::Which") and copyright notice and exits.
This program is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.