Perl | 'e' modifier in Regular Expression

Perl | lc() Function for Lower Case Conversion

Last Updated : 13 Apr, 2021

lc() function in Perl returns a lowercased version of VAR, or $_ if VAR is omitted.

Syntax: lc(VAR)
Parameter:
VAR: Sentence which is to be converted to lower case
Return:
Lowercased version of VAR, or $_ if VAR is omitted

Example 1:

Perl

#!/usr/bin/perl

# Original String containing both
# lower and upper case letters
$original_string = "GEEkS FoR geEkS";

# Converting the string to Lower case
$changed_string = lc($original_string);

# Printing the original String
print "Original String : $original_string\n";

# Printing the Changed String
print "Changed String : $changed_string\n";

Output:

Original String : GEEkS FoR geEkS
Changed String : geeks for geeks

Example 2:

Perl

#!/usr/bin/perl

# Original String containing 
# lower and upper case letters
# as well as numerics
$original_string = "G33kS F0R g3EkS";

# Converting the string to Lower case
$changed_string = lc($original_string);

# Printing the original String
print "Original String : $original_string\n";

# Printing the Changed String
print "Changed String : $changed_string\n";

Output:

Original String : G33kS F0R g3EkS
Changed String : g33ks f0r g3eks

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