I'm trying to execute a single shell command that will give me a sorted list of all the users currently logged into the system, displaying the users name as it appears in /etc/passwd.
I've tried
awk -F: '{print $1}' /etc/passwd | xargs finger -s | cut -c11-28 | uniq
This list whoever does... (7 Replies)
Hello Friends,
I have a file with many many rows and I want to insert some numbers in between numbers.
The number must be inserted in "correct sorted order".
1. Input = 1055555
0000001
1000000
1055555 <-insert here
3000000
4000000
5000000
8000000
2. Input = 4000080
0000001... (1 Reply)
Is there a way to monitor certain processes and if they hang too long to kill them, but certain scripts which are expected to take a long time to let them go?
Thank you
Richard (4 Replies)
Hi all,
please give me the commands using which i can compare 2 sorted files and get the difference in third file, indiating where the difference is from either file1 or file2.
as:
File1 (Original file)
GARRY
JOHN
JULIE
SAM
---------------
File2
DEV
GARRY
JOHN
JOHNIEE (7 Replies)
Hi
Is there an easy way to identify and group currently running processes into OS processes and APP processes. Not all applications are installed as packages.
Any free tools or scripts to do this?
Many thanks. (2 Replies)
Hi All,
How can I print the sorted results of the following expression in Perl ??
print "$i\t$h{$i}\n";
I tried
print (sort ("$i\t$h{$i}")"\n"); and other variations of the same but failed.
Can someone suggest how to solve this problem, as I'm tryin print sorted results of my script, which... (11 Replies)
Hi All,
A small question:
I have a file check.txt which looks like below:
KRPROD2,2012-11-20 08:46:50:408,ODK3325688102
KRPROD2,2012-11-20 08:47:35:289,ODK3325688102
KRPROD2,2012-11-20 08:47:35:446,ODK3325688102
KRPROD2,2012-11-20 08:48:32:973,ODK3325689120
KRPROD2,2012-11-20... (8 Replies)
Hello experts, I have matrices sorted by position, there are 400k rows, 3000 columns.
ID CHR POS M1 M2 M3 M4 M5
ID1 1 1 4.6 2.6 2.1 3.5 4.2
ID2 1 100 3.6 2.9 3.2 2.6 2.5
ID3 1 1000 4.1... (9 Replies)
Discussion started by: senhia83
9 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)