perlquestion
bichonfrise74
Below is my code.
<code>
#!/usr/bin/perl
use strict;
use warnings FATAL => 'all';
my $pid = fork();
my $output;
if ($pid) {
print "forking child.\n";
$output = qx( lst 2>&1 );
}
waitpid ($pid, 0);
print $output;
__OUTPUT__
Use of uninitialized value in print at 2.pl line 15.
forking child.
Can't exec "lst": No such file or directory at 2.pl line 11.
</code>
Questions:<br>
1. Why am I getting the uninitialized value message? Line 15 is the print $output. <br>
2. Why is the error showing up first? Shouldn't it "wait" until the child is finished before attempting to print the output?<br>
3. If I remove 'use warnings...', then I will not see the uninitialized message. But print $output will not show me anything.