EQEmulator Forums - View Single Post

c0ncrete · #7 02-26-2013, 03:26 AM

thw W enables all warnings (like telling you that you are using a variable only once)

running this file that way

warnMe.pl

Code:

$warnMe;

results in this

Code:

perl -cW warnMe.pl
Useless use of a variable in void context at warnMe.pl line 1.
Name "main::warnMe" used only once: possible typo at warnMe.pl line 1.
warnMe.pl syntax OK

http://perldoc.perl.org/perlrun.html#Command-Switches