Mac OS X & Unix. Post: 20417

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Special Forums UNIX Desktop Questions & Answers Mac OS X & Unix. Post 20417 by lethe on Thursday 25th of April 2002 11:57:04 PM

04-26-2002

Registered User

here is a nice way to list all commands available to you.

Code:

% ls `echo $PATH | sed 's/:/ /g'` | more

NB: those are back-quotes enclosing front-quotes. you might be best served by just cutting and pasting this to your terminal.

this will list all commands available to you at your terminal, one screen at a time. this is not really a good way to begin using and understanding UNIX, because there will probably be lots of commands (100?), and you won t learn too much from just seeing them. most of them will have esoteric names that you won t understand. but you asked for it and here it is.

if you see a command that looks interesting, type:

Code:

% man commandname

to learn more

understanding how this command works will go a long way towards teaching you about how to use UNIX. here we have most basic UNIX concepts: piping, shell variables, regexpressions with sed, command substitution and basic file commands like ls, echo, and more.

Last edited by lethe; 04-26-2002 at 01:07 AM..

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file::spec::functions

File::Spec::Functions(3pm)				 Perl Programmers Reference Guide				File::Spec::Functions(3pm)

NAME

       File::Spec::Functions - portably perform operations on file names

SYNOPSIS

	       use File::Spec::Functions;
	       $x = catfile('a','b');

DESCRIPTION

       This module exports convenience functions for all of the class methods provided by File::Spec.

       For a reference of available functions, please consult File::Spec::Unix, which contains the entire set, and which is inherited by the
       modules for other platforms. For further information, please see File::Spec::Mac, File::Spec::OS2, File::Spec::Win32, or File::Spec::VMS.

   Exports
       The following functions are exported by default.

	       canonpath
	       catdir
	       catfile
	       curdir
	       rootdir
	       updir
	       no_upwards
	       file_name_is_absolute
	       path

       The following functions are exported only by request.

	       devnull
	       tmpdir
	       splitpath
	       splitdir
	       catpath
	       abs2rel
	       rel2abs
	       case_tolerant

       All the functions may be imported using the ":ALL" tag.

COPYRIGHT

       Copyright (c) 2004 by the Perl 5 Porters.  All rights reserved.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

       File::Spec, File::Spec::Unix, File::Spec::Mac, File::Spec::OS2, File::Spec::Win32, File::Spec::VMS, ExtUtils::MakeMaker

perl v5.18.2							    2014-01-06						File::Spec::Functions(3pm)