Beefy Boxes and Bandwidth Generously Provided by pair Networks
"be consistent"
 
PerlMonks  

Re: example in book of Programming Perl does not work.

by vinoth.ree (Monsignor)
on May 30, 2013 at 05:30 UTC ( #1035963=note: print w/replies, xml ) Need Help??


in reply to example in book of Programming Perl does not work.

Hi yangy

I have tried the same, in my systems its works correctly. I am also using ubuntu only.

What PID is printing in the code?

print "\$pid is : $pid"

I am getting 0.

This line raises the error for you

die "cannot fork: $!" unless defined $pid;
All is well

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1035963]
help
Chatterbox?
[LanX]: but but but ... the errors are nicely formatted!
[tye]: 1) The python stack traces show you the names of variables, not the values of variables. Almost never informative.
[LanX]: do you have a py job now?
[tye]: Right now I have errors trying to fetch stuff from graphite. It says 'apps not ready, check startup logs'. I eventually find the startup logs and see 'no apps found'. Looking for fixes to this problem...
[LanX]: no idea ... ask py monks! ;-p
[tye]: it turns out that this can be caused by almost anything going wrong. If you want to know what caused the problem, you have to try to load each app by-hand to see what problems it is having, because none of those will be logged.
[tye]: No, I write more Perl than py at work. But I have to deal with plenty of py things.
[tye]: py monks would just be offended.
[Corion]: ;)
[Corion]: Hi tye btw ;)

How do I use this? | Other CB clients
Other Users?
Others lurking in the Monastery: (7)
As of 2017-09-21 20:11 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    During the recent solar eclipse, I:









    Results (252 votes). Check out past polls.

    Notices?