Beefy Boxes and Bandwidth Generously Provided by pair Networks
Do you know where your variables are?
 
PerlMonks  

Re^2: Can I from within a module access variables from the calling program?

by MidLifeXis (Prior)
on Oct 25, 2012 at 12:08 UTC ( #1000839=note: print w/ replies, xml ) Need Help??


in reply to Re: Can I from within a module access variables from the calling program?
in thread Can I from within a module access variables from the calling program?

Subtle difference:

perl -le 'my $foo = "whatever"; print $main::foo;'

--MidLifeXis


Comment on Re^2: Can I from within a module access variables from the calling program?
Download Code
Re^3: Can I from within a module access variables from the calling program?
by kcott (Abbot) on Oct 25, 2012 at 12:20 UTC

    I may be missing the point you're making but HJO's statement referred to global variables. Other examples with variables explicitly declared as global:

    $ perl -le 'local $foo = "whatever"; print $main::foo;' whatever
    $ perl -le 'our $foo = "whatever"; print $main::foo;' whatever

    -- Ken

      Very true, but the OP also was using my variables in their original code. our, local, or undeclared (as you demonstrated) would work.

      --MidLifeXis

        All good - I see the connection: "it didn't work" was not referring to $main::foo (in the sentence preceding it) but rather $main::log_name (near the end of the post).

        -- Ken

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1000839]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others meditating upon the Monastery: (5)
As of 2014-07-30 00:18 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    My favorite superfluous repetitious redundant duplicative phrase is:









    Results (229 votes), past polls