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Full Discussion: Passing arguments to a Perl script
Top Forums Shell Programming and Scripting Passing arguments to a Perl script Post 59559 by cbkihong on Wednesday 22nd of December 2004 08:03:55 PM
Old 12-22-2004
Code:
chomp($which_file=@ARGV[0]);
chomp($split_val=@ARGV[1]);

This should read $ARGV[0] etc. instead. If you have the -w flag on, it will give you a warning. And I don't think you need a chomp() on command line arguments anyway.

Putting a pair of quotes around the value is required by the shell. You can probably workaround it by

$split_val = join(' ', @ARGV[1..(@ARGV-1)]);

to have Perl absorbs all command line parameters delimited by whitespace and glues them into a single string, but the reconstructed string may not be identical to the original string you intended to get. Who says that one space is always the delimiter? For instance by giving the following as command line arguments

Code:
a  b c

Note the two spaces between a and b, which are treated as one whitespace delimiter by the shell and the code above transforms it to (thus the value of $split_val)

Code:
a b c

This arrangement is probably okay if the arguments are like a composite command, and whitespace is not significant. But literally, the string has been modified, and this is unlikely to be what you want.

So use the quotes to avoid such problems.
Last edited by cbkihong; 12-22-2004 at 11:06 PM..
 

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perl::critic::command

Perl::Critic::Command(3)				User Contributed Perl Documentation				  Perl::Critic::Command(3)

NAME

       Perl::Critic::Command - Guts of perlcritic.

SYNOPSIS

	   use Perl::Critic::Command qw< run >;

	   local @ARGV = qw< --statistics-only lib bin >;
	   run();

DESCRIPTION

       This is the implementation of the perlcritic command.  You can use this to run the command without going through a command interpreter.

INTERFACE SUPPORT

       This is considered to be a public class.  However, its interface is experimental, and will likely change.

IMPORTABLE SUBROUTINES

       "run()"
	   Does the equivalent of the perlcritic command.  Unfortunately, at present, this doesn't take any parameters but uses @ARGV to get its
	   input instead.  Count on this changing; don't count on the current interface.

TO DO

       Make "run()" take parameters.  The equivalent of @ARGV should be passed as a reference.

       Turn this into an object.

AUTHOR

       Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>

COPYRIGHT

       Copyright (c) 2005-2011 Imaginative Software Systems.  All rights reserved.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.  The full text of this license
       can be found in the LICENSE file included with this module.

perl v5.16.3							    2014-06-09						  Perl::Critic::Command(3)
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