Beefy Boxes and Bandwidth Generously Provided by pair Networks
go ahead... be a heretic
 
PerlMonks  

Re: File Handle qwerk?

by chargrill (Parson)
on Apr 10, 2007 at 14:06 UTC ( #609149=note: print w/ replies, xml ) Need Help??


in reply to File Handle qwerk?

This is likely your problem:

$memcmd=`/usr/sbin/prtconf | grep Memory`;

...which you then later try to use as a new FileHandle.

Try changing that line* to:

$memcmd="/usr/sbin/prtconf | grep Memory |";

The alternative is to capture the full output of qx//:

@memcmd_output = `/usr/sbin/prtconf | grep Memory`;

... and then iterate over that ...

for my $line( @memcmd_output ){ # ... do your stuff on $line }

* Updated: ikegami pointed out a missing trailing vertical bar.



--chargrill
s**lil*; $*=join'',sort split q**; s;.*;grr; &&s+(.(.)).+$2$1+; $; = qq-$_-;s,.*,ahc,;$,.=chop for split q,,,reverse;print for($,,$;,$*,$/)


Comment on Re: File Handle qwerk?
Select or Download Code
Re^2: File Handle qwerk?
by ikegami (Pope) on Apr 10, 2007 at 14:42 UTC

    Try changing that line to:

    $memcmd="/usr/sbin/prtconf | grep Memory";

    Shouldn't that be

    $memcmd="/usr/sbin/prtconf | grep Memory |";

      Yep. I admit to not testing it - I'm not used to reading the output of a command that way.

      I've corrected it above.



      --chargrill
      s**lil*; $*=join'',sort split q**; s;.*;grr; &&s+(.(.)).+$2$1+; $; = qq-$_-;s,.*,ahc,;$,.=chop for split q,,,reverse;print for($,,$;,$*,$/)

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://609149]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others about the Monastery: (7)
As of 2015-07-06 00:00 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (68 votes), past polls