Strings are a sequence of characters. Perl has two types of string:
\n are regarded as being two characters
\and n with no special meaning.
Some special format characters include:
\n newline \r carriage return \t tab \b backspace \\ backslash character \" double-quote character \l lower case next letter \L lower case all letters until \E \u upper case next letter \U upper case all letters until \E \E Terminate \L or \E