Perl uc Function

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Description

This function returns an uppercased version of EXPR, or $_ if not specified. Check ucfirst() function which will return only first character in uppercase.

Syntax

Following is the simple syntax for this function:

uc EXPR

uc

Return Value

This function returns String in uppercase.

Example

Following is the example code showing its basic usage:

#!/usr/bin/perl -w

$string = 'the cat sat on the mat.';
$u_string = uc($string);

print "First String |$string|\n";
print "Second String |$u_string|\n";

When above code is executed, it produced following result

First String |the cat sat on the mat.|
Second String |THE CAT SAT ON THE MAT.|


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