perlcase-conversion

Using the Perl 'tr' function to convert uppercase to lowercase and vice-versa at the same time

I have a string,

$string = 'AbCdEf';

and I want to use the tr function to convert all the uppercase letters to lower case and all the lower case to upper case.... at the same time. I basically just want to reverse it to become.

aBcDeF

I came up with this line, but I'm not sure how to modify it to do what I want. How can I do it?

$string=~ tr/A-Z/a-z/;
Solution

  • $string =~ tr/A-Za-z/a-zA-Z/;