replace string within file and the filename

Question

I have a string test.cgi@action=<action-name>

<action-name> can be any string

I would like to replace the above string with <action-name>.html

Can any one please let me know how I can proceed with this using a Perl script?

Answer 1

$string =~ s/test\.cgi@action=(.*?)/$1.html/g;