In article <[EMAIL PROTECTED]>, [EMAIL PROTECTED] (Rob Dixon) writes: >Peter Scott wrote: >> Anyway, here's a way that doesn't require keeping more than 12 lines >> in memory and doesn't require reading twice: >> >> $^I = ".bak"; >> my @queue; >> while (<>) { >> push @queue, $_; >> print shift @queue if @queue > 12; >> } > >Neat. I like that :) > >What's the $^I variable? Is it a 5.8 addition?
No, it's a 4.0 addition (or earlier). It's how to turn on the -i command-line switch within code. See -i in the perlrun page. -- Peter Scott Perl classes in Los Angeles: http://www.psdt.com/services/classes/ -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
