Re^2: Sharing a variable across multiple files

Replies are listed 'Best First'.
Re^3: Sharing a variable across multiple files by bihuboliya (Acolyte) on Aug 07, 2013 at 12:28 UTC
Dear Monks, I gained some additional wisdom about the function 'do' which I would like to share. I used the do function in the first script to execute the second script in the same context (shared memory without creating another process by using system(..)). Though, I had to pass some arguments to the second script. do "2.pl $arg1" does not work. Finally I came to know that if we want to pass argument to the second script, we can exploit the idea that @ARGV will be visible to the second script. I achieved the goal as below: `use my_module; print "@my_var\n"; # prints 1..10 change_var(); print "@my_var\n"; # prints 20..30 { # using local to supress @ARGV local @ARGV = ($arg1, $arg2...); # $arg1, $arg2... are the argumen +ts to be passed do "2.pl"; } exit;` [download] Now, in 2.pl I can get these arguments using shift. Regards, --Anupam	[reply] [d/l]

Replies are listed 'Best First'.

Re^3: Sharing a variable across multiple files
by bihuboliya (Acolyte) on Aug 07, 2013 at 12:28 UTC

I used the do function in the first script to execute the second script in the same context (shared memory without creating another process by using system(..)). Though, I had to pass some arguments to the second script. do "2.pl $arg1" does not work.

Finally I came to know that if we want to pass argument to the second script, we can exploit the idea that @ARGV will be visible to the second script. I achieved the goal as below:

use my_module;

print "@my_var\n"; # prints 1..10
change_var();
print "@my_var\n"; # prints 20..30
{ # using local to supress @ARGV
    local @ARGV = ($arg1, $arg2...); # $arg1, $arg2... are the argumen
+ts to be passed
    
    do "2.pl";
}
exit;
[download]

Regards,

--Anupam

[reply]
[d/l]