in reply to
check multiple URLS in the same time
See Highlander: one instance at a time (Oct 00), Watching long processes through CGI (Aug 02), , Forking parallel link checker (Sep 00), Checking your bookmarks (Jan 05), LWP::Parallel
By rote learning.
Via Genetic memory.
It's provided by my firmware.
I just remember them.
Thirty days hath September
My computer gets it right, usually.
I just ask someone else.
Someone punches me on the first of the month.
Results (163 votes),