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Top Forums Shell Programming and Scripting Counting the number of occurances of all characters (a-z) in a string Post 302125961 by rsendhilmani on Monday 9th of July 2007 09:42:19 AM
Old 07-09-2007
Counting the number of occurances of all characters (a-z) in a string

Hi,

I am trying out different scripts in PERL. I want to take a line/string as an input from the user and count the number of occurrances of all the alphabets (a..z) in the string. I tried doingit like this :

#! /opt/exp/bin/perl

print "Enter a string or line : ";
$string = <STDIN>;
chop $string;
$string =~ tr/[A-Z]/[a-z]/;
#print @string;
print "\n";
@arr = ('a' .. 'z');
foreach $val (@arr)
{
$count = ($string =~ tr/$val//);
print "$val occurred $count times\n";
}


But looks like I am going wrong somewhere. Please guide me to solve this.

Regards,
Sendhil
 

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TIDY.GETOPTDOC(3)							 1							 TIDY.GETOPTDOC(3)

tidy::getOptDoc - Returns the documentation for the given option name

       Object oriented style

SYNOPSIS
string tidy::getOptDoc (string $optname) DESCRIPTION
Procedural style string tidy_get_opt_doc (tidy $object, string $optname) tidy_get_opt_doc(3) returns the documentation for the given option name. Note You need at least libtidy from 25 April, 2005 for this function be available. PARAMETERS
o $object - The Tidy object. o $optname - The option name RETURN VALUES
Returns a string if the option exists and has documentation available, or FALSE otherwise. EXAMPLES
Example #1 Print all options along with their documentation and default value <?php $tidy = new tidy; $config = $tidy->getConfig(); ksort($config); foreach ($config as $opt => $val) { if (!$doc = $tidy->getOptDoc($opt)) $doc = 'no documentation available!'; $val = ($tidy->getOpt($opt) === true) ? 'true' : $val; $val = ($tidy->getOpt($opt) === false) ? 'false' : $val; echo "<p><b>$opt</b> (default: '$val')<br />". "$doc</p><hr /> "; } ?> SEE ALSO
tidy.getconfig(3), tidy.getopt(3). PHP Documentation Group TIDY.GETOPTDOC(3)
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