-----Original Message-----
From: Dave Kettmann [mailto:[EMAIL PROTECTED]
Sent: Thursday, December 02, 2004 11:14 AM
To: Perl List (E-mail)
Subject: Working with Environment Variables
Hi List,
I am trying to get an environment variable into another variable (for ease
of use) and I am having trouble. It seems to only be with 2 certain
variables as I can do the following:
#!/usr/bin/perl
use strict;
use warnings;
my $path1 = $ENV{'PATH'};
print $path1
__END__
And it will print the path as it should. But if I do this:
#!/usr/bin/perl
use strict;
use warnings;
my $from1 = $ENV{'SIP_HF_FROM'};
print $from1;
__END__
I get: Use of uninitialized value in print at test.pl line 8.
When I type "set" at the command line, I do see the variable SIP_HF_FROM ...
...
SHLVL=1
SIP_HF_FROM=sip:+16364424593
SIP_RURI=BLAH2
...
Is it that there is a bad character in the variable that I dont know about?
Any help is appreciated as always. I hope I explained myself well enough.
Thanks in advance,
Dave Kettmann
NetLogic
636-561-0680
[jwm]
On Unix you must "export" the variable to see it in the perl script...
<snip>
$ A='Externally set'
$ export A
$ perl -e 'print "ENV{$_} =<$ENV{$_}>\n" foreach (sort keys %ENV);'
ENV{A} =<Externally set>
...
</snip>
Hope this helps ...
jwm
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