Using %SIG to define our own signal handlers : Special Variables « Language Basics « Perl

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Perl » Language Basics » Special Variables

Using %SIG to define our own signal handlers


   



#!/usr/bin/perl





use warnings;

use strict;



my $count = 3;

$| = 1;



$SIG{ 'INT' } = \&stop;



while ( $count ) {

   print( "Hi!" );

   print( "\n" );

   sleep( 1 );

}



sub stop 

{

   $SIG{ 'INT' } = \&stop;

   $count--;

   print( "$count\n" );



   unless ( $count ) {

      print( "line...\n" );

   }

}

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