Thanks to all!! The things are working now, Whenever the web page is made and you need to pass some information from that page onto more pages, you can use CGI::session. For eg. Username has to be passed from login page to rest of the pages of the site. 
##-- code for making a session and passing the information
my $cgi = new CGI;
my $session = new CGI::Session(undef,undef,{Directory=>'/tmp/sessions'
+});
my $cookie = $cgi->cookie(CGISESSID => $session->id);
#print $cgi->header( -cookie=>$cookie ); #--do not print header first 
+if you redirecting your URL as given below
$session->param('user_id',$username ); #--information passed

my $url = "http://localhost/cgi-bin/somesite.cgi";
print "Location: $url ";   #--redirecting the URL


##-- code for retrieving the information
print "Content-type: text/html\n\n";

my $cgi = new CGI;
my $sid=$cgi->cookie("CGISESSID");
my $session = new CGI::Session(undef,$sid,{Directory=>'/tmp/sessions'}
+);

my $username = $session->param('user_id');
print "Username = $username";

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In reply to Re^2: retaining values among server requests by need_help21
in thread retaining values among server requests by need_help21

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