> "Timothy" == Timothy Kimball <[EMAIL PROTECTED]> writes:
Timothy> As for always getting that weird error message from $!, I always
Timothy> get "Illegal seek" on my machine.
You should never look at $! unless immediately following a *failed*
system-related call. A successful call doesn't
ris and Windows.)
Thanks again - I'd been struggling with this for ages. (And thanks to the
others who've replied as I've been typing this!)
Ron
-Original Message-
From: Peter Cornelius [mailto:[EMAIL PROTECTED]]
Sent: 23 May 2001 19:14
To: 'Mitchell, Ronald'; '[
Enter:
perldoc perlvar
and then look at the entries for $CHILD_ERROR ($?) and $ERRNO ($!).
There can be other issues about return values, but start with the above.
Ron Mitchell wrote:
: I want to check that a backtick command has executed OK. I thought I could
: do that by looking at the $! variable.
Check $? instead. This one's for pipes, backticks, & system() commands.
It's a fairly complex flag, with a lot of stuff in it, but briefly,
$? >> 8 contains t
>I want to check that a backtick command has executed OK. I thought I could
>do that by looking at the $! variable.
Check $?
This is Child exit status which is what you get when you spawn another
process with back ticks.
The $! is the ERRNO (or Error string depending on context) for the last
sy
