42 is the decimal ASCII code for the asterisk (*) symbol.
The asterisk, is used to represent "whatever you want" or "anything".
"*" is anything that's not fractional or hidden, in regular expression speak. you need "*.*". if you are on unix/linux systems, running as root id, and execute "cd /; rm -rf *.*" would cause some interesting reaction from your boss, and his/her boss, and his/her boss boss,......
methink, aikido is "!"