Hi,
I have a problem in pasting a url in the thread. I tried many a times and i keep failing.
Can u tell me what's wrong?
I go by the instructions that appear after clicking the http:// but still i fail. The link does not appear properly in the threads that i post.
Thanks,
Nisha (3 Replies)
Hi,
I would be very happy if someone could help me please. I am relatively new to UNIX, and still learning.
My understanding of things are:
Say I have a PC running Windows. This machine has a name. If I have 10 PC's, then I have 10 names, one for each PC. Each PC is independent of the other.... (4 Replies)
Hi
I am trying to set up two hosts in a reverse proxy. The reverse proxy already has 8 servers running perfectly, but they are all simply mapping pure addresses, which I have registered internally and externally.
The latest two I wish to add are a bit different, they are app servers, one... (1 Reply)
Hi,
I am trying to upload a file to a SQL database table. The column type is IMAGE. I am looking for a solution to upload a word doc file. I tried 3 approaches.
1) my $fileToStore = "mytest.doc";
open IPFILE, "<", $name;
binmode IPFILE;
while (<IPFILE>)
{
$fileToStore .= $_;
}
close... (1 Reply)
hello folks,
i am stuck with this awk command. i need to calculate the sum of a column of values on a flatfile and i am using the following command :
awk -F"|" '{x += $10} END {print "Sum: "x}' standard_csv_file1.out
that flatfile contains 180 fields and i am getting the... (5 Replies)
Hi,
I have used the following command to get result using some program and got desired output but I am unable to understand the last part: sort -k5,5 -rn|head -n 10
grep Centre groups.dat |sort -k5,5 -rn|head -n 10
Please guide.
Thanks (2 Replies)
Hi ,
i have a shell script with the first two lines as
#! /bin/ksh
set -x
when i try opening the file from unix using the command 'sh filename.sh' , i am getting the below error :
invalid optionline 2: set: -
Pls help
Use code tags for you code and data... (1 Reply)
I have not been able to append the contents of many files into one file. I have executed the CAT command shown below separately substituting an actual path and file name for the array variable to verify that I have the syntax correct. The bottom line - nothing is happening with CAT. I am running... (16 Replies)
Discussion started by: demmith
16 Replies
LEARN ABOUT DEBIAN
io::async::pid
IO::Async::PID(3pm) User Contributed Perl Documentation IO::Async::PID(3pm)NAME
"IO::Async::PID" - event callback on exit of a child process
SYNOPSIS
use IO::Async::PID;
use POSIX qw( WEXITSTATUS );
use IO::Async::Loop;
my $loop = IO::Async::Loop->new;
my $kid = $loop->fork(
code => sub {
print "Child sleeping..
";
sleep 10;
print "Child exiting
";
return 20;
},
);
print "Child process $kid started
";
my $pid = IO::Async::PID->new(
pid => $kid,
on_exit => sub {
my ( $self, $exitcode ) = @_;
printf "Child process %d exited with status %d
",
$self->pid, WEXITSTATUS($exitcode);
},
);
$loop->add( $pid );
$loop->run;
DESCRIPTION
This subclass of IO::Async::Notifier invokes its callback when a process exits.
For most use cases, a IO::Async::Process object provides more control of setting up the process, connecting filehandles to it, sending data
to and receiving data from it.
EVENTS
The following events are invoked, either using subclass methods or CODE references in parameters:
on_exit $exitcode
Invoked when the watched process exits.
PARAMETERS
The following named parameters may be passed to "new" or "configure":
pid => INT
The process ID to watch. Must be given before the object has been added to the containing "IO::Async::Loop" object.
on_exit => CODE
CODE reference for the "on_exit" event.
Once the "on_exit" continuation has been invoked, the "IO::Async::PID" object is removed from the containing "IO::Async::Loop" object.
METHODS
$process_id = $pid->pid
Returns the underlying process ID
$pid->kill( $signal )
Sends a signal to the process
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2012-10-24 IO::Async::PID(3pm)