simple Perl question

true_atlantis · 11-14-2003, 01:47 PM

How can I run a perl script, but make it so no errors are shown... there are some simple things that show up, like "Variable a was only use once, might be a typo"

thanks

LogicG8 · 11-14-2003, 02:16 PM

./script.pl 2>/dev/null

That will re-direct stderr to /dev/null all other output
will be written to the screen

Edit:
If you post the code
some one might be able to help out
more trying to stomp out warnings/errors

Also are you using -w or strict?
You could try not using them,
although I like them for safety's
sake.

TheOther1 · 11-16-2003, 09:43 PM

Right, -w and strict will give warnings about variables declared but not used.

true_atlantis, post the code and you will get a better understanding of WHY you are getting errors. A supresseed error may not give you any problems today, but if you build on your script, it will come back to bite you!
You may also want to look at the beginners perl mailing list It's a great resource with lots of helpful people.
HTH!

true_atlantis · 11-17-2003, 01:00 PM

thanks for all the help... the reason the errors were coming up was because of -w i didnt know exactly what it meant... thanks

LogicG8 · 11-17-2003, 01:53 PM

I'm glad we could help you out,
but you might consider keeping -w
and trying eliminate the complaints
it makes.

TheOther1 · 11-18-2003, 08:37 PM

the errors aren't because of -w, it's something in your code! -w just warns you about them. The errors are still there and it is a very good idea for the first two lines of your code to be:

#!/usr/local/bin perl -w
use strict;

Just my $0.02 worth!

BTW: The error message looks like you defined a variable ($a) but didn't use it anywhere after defined it.