I've written a tiny program to make it easy to test the syntax and
effects of a Perl statement. My program is called "perltry" and here it
is in its full gory (pun intended)
#!/usr/bin/perl
use strict;
use warnings;
system('clear');
system('perl -v');
print "Go on - try a few... Enter 'exit' to end.\n";
while (<>) {
eval $_;
if ($@) {print "[EMAIL PROTECTED]";}
print ' ','.'x50," perltry on $^O\n"
};
If I enter a statement, such as "$a=1;" (without the quotes) then I
would expect that scalar $a would get the value 1. If I then enter the
statement "print $a" I expected to see "1". What I saw was:
Use of uninitialized value in string at (eval 2) line 1, <> line 2.
Could someone tell me why this happened, please?
Is it possible to change this so that the variable $a would get set?
This is my very first post to a Perl newsgroup, so treat me gently, please!
--
Steve Swift (aka "Swifty")
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