Welcome to the Monastery | |
PerlMonks |
Re: qx and $!by Bro. Doug (Monk) |
on Oct 19, 2006 at 02:46 UTC ( [id://579260]=note: print w/replies, xml ) | Need Help?? |
On a Mac, it prints nothing.
However, if you change this to: ... you'll get the date printed on the command line. qx executes the system's date command and returns it as a quoted string. $! refers to the last error thrown by a statement that isn't in an eval block. Why it's a 'Bad file descriptor' or 'Illegal seek' is interesting. I don't know. I suspect, however, that this is what you really wanted to know when you posed this question. (?) At any rate... I'd like to know. I'll test it tomorrow on a Linux system, since my Mac doesn't seem to freak out on an unset $!.
Bro. Doug :wq
In Section
Seekers of Perl Wisdom
|
|