Perl | chomp() Function

The chomp() function in Perl is used to remove the last trailing newline from the input string.

Syntax: chomp(String) Parameters: String : Input String whose trailing newline is to be removed Returns: the total number of trailing newlines removed from all its arguments

Example 1:

Perl

#!/usr/bin/perl

# Initialising a string
$string = "GfG is a computer science portal\n";

# Calling the chomp() function
$A  = chomp($string);

# Printing the chopped string and
# removed trailing newline character
print "Chopped String is : $string\n";
print "Number of Characters removed : $A";

Output:

Chopped String is : GfG is a computer science portal
Number of Characters removed : 1

In the above code, it can be seen that input string containing a newline character (\n) which is removed by chomp() function. Example 2:

Perl

#!/usr/bin/perl

# Initialising two strings
$string1 = "Geeks for Geeks\n\n";
$string2 = "Welcomes you all\n";

# Calling the chomp() function
$A  = chomp($string1, $string2);

# Printing the chopped string and
# removed trailing newline character
print "Chopped String is : $string1$string2\n";
print "Number of Characters removed : $A\n";

Output:

Chopped String is : Geeks for Geeks
Welcomes you all
Number of Characters removed : 2

In the above code, it can be seen that the input string1 containing two newline characters (\n\n) out of which only last newline character is removed by chomp() function and second last newline character is utilized which can be seen in the output.

The chomp() function in Perl is used to remove the newline character (\n) from the end of a string.

Here’s an example code that uses the chomp() function to remove the newline character from a string:

Perl

#!/usr/bin/perl
# your code here
# Define a string with a newline character
my $string = "Hello, world!\n";

# Remove the newline character from the string using chomp()
chomp $string;

# Print the modified string to the console
print "$string";

Output

Hello, world!

In this code, the chomp() function is used to remove the newline character from the end of the string “Hello, world!\n”. The resulting string “Hello, world!” is then printed to the console using the print() function.