searching for $@

When hacking some Perl code I encountered $@. It seems that is just a way of dumping the last error. Unfortunately Google doesn't help me because it only does a word based search. Does anyone know of a search engine that allows searching for such things? Also what's the best web site for finding a quick summary of what something does in Perl? -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/