Hi,

complete newbie here. I love Ruby and would like to use Ruby in my new
project, which deals heavily with large sized file manipulation and
string processing.

Can you give me advice on how to write decent (with an emphasis on
performance) string processing scripts.

Things I am interested in are best practices for concating strings,
searching for sub-string, regex operations, reading and writing files,
etc.

Also links to Ruby performance related sites are greatly appreciated.

Thanks in advance.