Re^3: stronger than eval?

That's not quite right; $@ will get the exception (aka "die" message). Anything directly written out to STDERR or STDOUT will not be caught, unless you tie those filehandles (only works for output by perl) or reopen them. If the output is due to a warn, you can catch it with a $SIG{__WARN__} handler.

Comment on Re^3: stronger than eval?

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Re^4: stronger than eval? by andyford (Curate) on Sep 21, 2006 at 20:38 UTC
Oh OK right I see. Part of my error is the shell, and part is perl. Lifted this from the open docs. `open OLDERR,">&",\*STDERR or die "Can't dup STDERR: $!"; open STDERR,'>>',"foo.out" or die "Can't redirect STDERR: $!"; eval 'use Cache::File'; open STDERR, ">&OLDERR" or die "Can't dup OLDERR: $!";` [download] but I get a `Name "main::OLDERR" used only once: possible typo...` [download] Is there another way to express the last open, or do I have to do the local "no warnings" thing that I read about a couple times many years ago? andyford or non-Perl: Andy Ford	[reply] [d/l] [select]
Re^5: stronger than eval? by cephas (Pilgrim) on Sep 22, 2006 at 00:18 UTC
`open my $tmp,">&",\*STDERR or die "Can't dup STDERR: $!\n";` [download]	[reply] [d/l]