Question on qx

by narashima (Beadle)

on Nov 03, 2006 at 20:49 UTC ( [id://582160]=perlquestion: print w/replies, xml )

Need Help??

narashima has asked for the wisdom of the Perl Monks concerning the following question:

Revered Monks,
What is return value of qx ? I tried doing the following but I did not get any value for $status.

$status = qx/cat new1 >new/;
print "value of status is $status \n";
[download]

The output of the code above is:

"Value of status is "

Could anyone enlighten me please.

Thanks

Comment on Question on qx Download Code

Replies are listed 'Best First'.
Re: Question on qx by BUU (Prior) on Nov 03, 2006 at 20:53 UTC
The output of `qx//` is whatever the program inside's STDOUT is. In your specific case you send all of the program's STDOUT to a file, so there is none left for perl to read.	[reply] [d/l]
Re^2: Question on qx by duckyd (Hermit) on Nov 03, 2006 at 22:11 UTC
if BUU's explanation wasn't enough, perhaps perlop can help	[reply]
Re^3: Question on qx by gonza (Novice) on Nov 03, 2006 at 23:29 UTC
If you're looking for the return code of the command you're running, you can use system().	[reply]
Re^4: Question on qx by BUU (Prior) on Nov 04, 2006 at 11:11 UTC
Re^5: Question on qx by ikegami (Patriarch) on Nov 04, 2006 at 15:13 UTC

Domain Nodelet^?

Node Status^?

node history
Node Type: perlquestion [id://582160]
Approved by Paladin
help

Chatterbox^?

How do I use this? • Last hour • Other CB clients

Other Users^?

Others sharing their wisdom with the Monastery: (2)

As of 2024-04-20 03:54 GMT

Sections^?

Information^?

Find Nodes^?

Leftovers^?

Voting Booth^?

No recent polls found