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Top Forums Shell Programming and Scripting perl script command line option driven script Post 302482449 by drl on Tuesday 21st of December 2010 01:49:27 PM
Old 12-21-2010
Hi.

Also:
Code:
-s enables rudimentary switch parsing for switches on the command
line after the program name but before any filename arguments (or
before an argument of --). Any switch found there is removed from
@ARGV and sets the corresponding variable in the Perl program. The
following program prints "1" if the program is invoked with a -xyz
switch, and "abc" if it is invoked with -xyz=abc.

#!/usr/bin/perl -s
if ($xyz) { print "$xyz\n" }

-- excerpt from man perlrun , q.v.

So, for a file p1:
Code:
#!/usr/bin/perl -s
if ($xyz) { print "$xyz\n" }

Running as directed, produces:
Code:
% ./p1 -xyz="Hello, world."
Hello, world.

My current preference is to use Getopt::Euclid because it generates a man page and a command line parser. I would not call it easy, so Getopt::Std is preferable from that respect. The option -s is probably the easiest, but the man page should be read carefully ... cheers, drl
This User Gave Thanks to drl For This Post:
 

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IO::All::FTP(3pm)					User Contributed Perl Documentation					 IO::All::FTP(3pm)

NAME
IO::All::FTP - Extends IO::All to FTP URLs SYNOPSIS
use IO::All; "hello world " > io('ftp://localhost/test/x'); # save to FTP io('ftp//example.org/pub/xyz') > io('xyz'); # GET to file # two ways of getting a file with a password: $content < io('ftp://me:secret@example.org/xyz'); $content < io('ftp://example.org/xyz')->user('me')->password('secret'); DESCRIPTION
This module extends IO::All for dealing with FTP URLs. Note that you don't need to use it explicitly, as it is autoloaded by IO::All whenever it sees something that looks like an FTP URL. METHODS
This is a subclass of IO::All::LWP. The only new method is "ftp", which can be used to create a blank IO::All::FTP object; or it can also take an FTP URL as a parameter. Note that in most cases it is simpler just to call io('ftp//example.com'), which calls the "ftp" method automatically. OPERATOR OVERLOADING
The same operators from IO::All may be used. < GETs an FTP URL; > PUTs to an FTP URL. SEE ALSO
IO::All::LWP, IO::All, LWP. AUTHORS
Ivan Tubert-Brohman <itub@cpan.org> and Brian Ingerson <ingy@cpan.org> COPYRIGHT
Copyright (c) 2007. Ivan Tubert-Brohman and Brian Ingerson. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See <http://www.perl.com/perl/misc/Artistic.html> perl v5.10.0 2007-03-29 IO::All::FTP(3pm)
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