Perl | substitution Operator

Substitution Operator or ‘s’ operator in Perl is used to substitute a text of the string with some pattern specified by the user.

Syntax: s/text/pattern

Returns: 0 on failure and number of substitutions on success

Example 1:

#!/usr/bin/perl -w

# String in which text
# is to be replaced
$string = "GeeksforGeeks";

# Use of s operator to replace
# text with pattern
$string =~ s/for/to/;

# Printing the updated string
print "$string\n";

Output:

GeekstoGeeks

Example 2:

#!/usr/bin/perl -w

# String in which text
# is to be replaced
$string = "Hello all!!! Welcome here";

# Use of s operator to replace
# text with pattern
$string =~ s/here/to Geeks/;

# Printing the updated string
print "$string\n";

Output:

Hello all!!! Welcome to Geeks