*** STUDY THIS CODE IN CONJUNCTION WITH YESTERDAY's examples.
*** See how they used the =~ m/:/ and the =~ tr/:// in the 

        http://www.cns.uni.edu/~jacobson/cgi-bin/showColorsv2.cgi

$string = "Mark Jacobson#11#UNI#Panthers#Caps";

$countOfPoundSigns = $string =~ tr/#//;    # returns 4 as the count...

print "\nThe count for # symbol was: " . $countOfPoundSigns . 
      " in the data----> $string <---- \n\n";

print "\nPlease enter a string of data, with or without a UNI in it.\n";
$st = <>;

if ($st =~ m/UNI/)
{
   $message = "Your string did contain UNI at least once";
}
else
{
   $message = "Your string did NOT contain any occurrence of UNI.";
}

print "\n $message \n";

NOTE:  See class22.html and the URL:

       http://www.cns.uni.edu/~jacobson/cgi-bin/colorsv2.cgi

       Below here is the View menu, Source for colorsv2.cgi
       after clicking the Random Color button at least 6 times.
       --------------------------------------------------------

[?xml version="1.0" encoding="utf-8"?]

[!DOCTYPE html
	PUBLIC "-//W3C//DTD XHTML Basic 1.0//EN"
	"http://www.w3.org/TR/xhtml-basic/xhtml-basic10.dtd"]

[html xmlns="http://www.w3.org/1999/xhtml" lang="en-US"]

[head]
        [title]BGColor Pink, Text Color Black[/title]
[/head]

[body text="Black" bgcolor="Pink"]

[h1]This has background color Pink and text color Black[/h1]

[form method="post" action="/~jacobson/cgi-bin/colorsv2.cgi" 
                    enctype="application/x-www-form-urlencoded"]

        [INPUT TYPE='hidden' NAME='recentcolors' VALUE=7:5:2:6:3:0]

        [input type="submit" name="Random Color" value="Random Color" /]
[/form]

[P]
[HR]

[H2]Previous 5 (BGCOLOR,TEXT) color pairs:
      [OL]
           [LI] (Yellow,Purple) [P] 
           [LI] (Blue,Yellow)   [P]
           [LI] (White,Black)   [P]
           [LI] (Black,White)   [P]
           [LI] (Red,Blue)      [P]
      [/OL]
[/H2]

[/body]
[/html]   NOTE:  Had to use BRACKETS { and } instead of < and > symbols...