hi i am new to perl and was trying to write a script to check if ip address is valid. Though i found some solutions online i wanted to try it on my own

#! /usr/bin/perl -w 
print "Enter IP Address:";
my $ip = <STDIN>;
if ( $ip =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/)
{
 print "yes match $1 $2 $3 $4\n";
}
else
{
 print "no match\n";
}

[download]

when i enter 10.3.4.5 it says ip address matches as expected. But when enter 1000.3.4.5 too it says match is found and the values of $1 to $4 are printed as 000 3 4 5. How could this happen as i am saying to match only 3 digits and not more than that using "\d{1-3}" englighten me!

In reply to Validate Ip address Regexp by akr8986

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