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Perl | uc() Function
  • Last Updated : 07 May, 2019

uc() function in Perl returns the string passed to it after converting it into uppercase. It is similar to ucfirst() function which returns only first character in uppercase.

Note: The characters which are already in UpperCase are not modified.

Syntax: uc String

Returns: string in uppercase.

Example 1:



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#!/usr/bin/perl -w
  
# String to be converted to UPPERCASE
$string = "geeksfOrGeeks";
  
print "Original String: $string\n";
  
# Converting the string to 
# UPPERCASE using uc() function
$UPPER_STRING = uc($string);
  
print "Modified String: $UPPER_STRING";

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Output:

Original String: geeksfOrGeeks
Modified String: GEEKSFORGEEKS

Example 2:

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#!/usr/bin/perl -w
  
# String to be converted to UPPERCASE
$string = "WelComEToGeeKS";
  
print "Original String: $string\n";
  
# Converting the string to 
# UPPERCASE using uc() function
$UPPER_STRING = uc($string);
  
print "Modified String: $UPPER_STRING";

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Output:

Original String: WelComEToGeeKS
Modified String: WELCOMETOGEEKS
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