Perl interpreter: convert '\n' into newline? [duplicate]

Question

I have a program in perl that is passed a string from the console. If I pass the string \r\n from the console, it does as it is supposed to and literally stores \r\n into the console arguments as it was created like so:

my $str = '\r\n';

How can I make $str into a CRLF? For example; how can I make

my $str = '\r\n';

into

my $str = "\r\n"; #<--- perl converts \r\n into a carriage return & line feed.

How can I force perl to convert the string passed from the console into CRLF?

If I am not being clear enough, let me show an example:

my ($arg1, $arg2) = @ARGV;
print $arg1 . $arg2;

Assuming $arg1 was passed 'Hello\r\n' and $arg2 was passed 'World!' it will print Hello\r\nWorld! when I want it to print Hello(newline)World!

cjm · Accepted Answer · 2013-11-21 23:09:37Z

8

You can use the unbackslash function from String::Escape to do this:

use String::Escape qw( unbackslash );

my $str = 'Hello\r\nWorld\r\n';

print unbackslash($str);

answered Nov 21, 2013 at 23:09

cjm

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