Re: How can I get Perl via Carp, to SCREAM -- more informative output via cluck(),confess(),longmess()?

Any string starting with "cat" is true. or respects parentheses, so the confess&Co are never called. You probably wanted to move or outside the system argument list? In such a case, note that system returns 0 upon success.

(0 == system('cat', $file)) or confess();
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Re^2: How can I get Perl via Carp, to SCREAM -- more informative output via cluck(),confess(),longmess()? by taint (Chaplain) on Dec 06, 2013 at 17:23 UTC
Thanks for the reply, choroba I replaced my call to system, with the one you noted. which returned `cat: MYFILE: No such file or directory Undefined subroutine &main::confess called at ./tester.cgi line 17.` [download] Thanks again for the reply. --Chris Hey. I'm not completely useless. I can be used as a bad example.	[reply] [d/l]
Re^3: How can I get Perl via Carp, to SCREAM -- more informative output via cluck(),confess(),longmess()? by tobyink (Canon) on Dec 07, 2013 at 22:28 UTC
`Undefined subroutine &main::confess` This is because you forgot to import the `confess` function. You're importing `cluck`, `longmess` and `shortmess` but nothing else from Carp: `use Carp qw(cluck longmess shortmess);` [download] Really, `longmess` and `shortmess` are unlikely to be much use in end-user code. They might be helpful if you were writing an extension to Carp. The four functions that are actually useful are `croak`, `confess`, `carp`, and `cluck`, and the least useful of these is `cluck` (which happens to be the only one of them that you're importing). `use Moops; class Cow :rw { has name => (default => 'Ermintrude') }; say Cow->new->name`	[reply] [d/l] [select]
Re^4: How can I get Perl via Carp, to SCREAM -- more informative output via cluck(),confess(),longmess()? by taint (Chaplain) on Dec 07, 2013 at 23:09 UTC
Good points, tobyink. I should have caught the omission of confess, myself. Thanks for pointing it out. <blush> Thanks again. --Chris Hey. I'm not completely useless. I can be used as a bad example.	[reply]