Getopt::Std has the functionality you need:

#! perl
use strict;
use warnings;
use Getopt::Std;

our ($opt_p, $opt_L);

getopts('p:L');     # -p takes an argument, -L is a boolean flag

print "p switch: $opt_p\n";
print "L switch: $opt_L\n";
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Output:

16:01 >perl 698_SoPW.pl -L -p foo
p switch: foo
L switch: 1

16:01 >
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As this is a core module, it’s also documented in the Perl documentation: Getopt::Std.

Hope that helps,

That is Ok. But how I should give to script options like -L1 or -L2. I mean, that my script must check "Oh master, I see that you defined -L1! Ok, i am do it"? Do I should check bolean -L and later 1 or 2?

Ok, I think I understand what you’re looking for a little better now. Use Getopt::Long:

#! perl
use strict;
use warnings;
use Getopt::Long;

my $L1 = '';
my $L2 = '';
my $p  = '';

GetOptions('L1=s' => \$L1, 'L2=s' => \$L2, p => \$p);

print "L1 switch: $L1\n";
print "p  switch: $p\n";
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as documented in Getopt::Long. Output:

16:39 >perl 698_SoPW.pl --L1 foo -p
L1 switch: foo
p  switch: 1

16:39 >
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But note that if there is no L2 switch defined here, --L (or even -l) will be accepted as an abbreviation for L1. From the documentation, it appears that this is a feature, not a bug: see Case and abbreviations.

Hope that helps,

Athanasius <°(((>< contra mundum

Iustus alius egestas vitae, eros Piratica,