On May 11, 2008, at 18:04, Richard Lee wrote:
I just looked it up on perldoc perlvar, but I am still not sure what
it does.
$^I The current value of the inplace-edit extension. Use
"undef" to disable inplace editing. (Mnemonic: value of -i
switch.)
I was reading perl cookbook and saw this example, and was wondering
what that is....
if (@ARGV) {
$^I = ".orig";
} else {
warn "$0: Reading from stdin\n" if -t STDIN;
}
Setting $^I turns on in-place-editing*.
* http://perldoc.perl.org/perlrun.html#*-i*[_extension_]
--
Chas. Owens
wonkden.net
The most important skill a programmer can have is the ability to read.
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