Wait for background processes to complete

Greetings,
Well - I've spent a bunch of time trying to figure this out - to no
avail.

Here's what I want to do - run several commands in the background and
have the perl program wait for the commands to complete. Fork doesn't
do it, nor does wait nor waitpid.

Any thoughts?

Here's a sample program which starts the processes:

while (<*.txt>)
{
print "Copying $_ \n";
system("cp $_ $_.old &") ;
}
print "End of excercise\n";
exit;

I mean if this were a shell program - this would work:

for x in `ls *.txt`
do
print "Copying $_ \n"
cp $_ $_.old &
done
wait

thanks,
pg

.

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