Programming :: Perl To Kill Off Some Processes?

Nov 18, 2010

how to even start this Perl script. I have the following processes:

Command used to get this info:

ps aux --forest | grep -e process_name -e ksh | awk '{if ($1 == "user1" && $1 != "root" && $1 != "UID" && $1 != "xfs" && $1 != "mfg" && $1 != "mfgnet") print $0}'

Processes

user1 2819 0.0 0.0 4272 612 ? S Nov17 0:00 \_ -pksh-ksh
user1 2820 0.0 0.0 64956 1584 pts/833 Ss+ Nov17 0:00 \_ -ksh

[code]....

I need a way to kill off the pids 2819, 2820 because they do not have a process tied to them like pids 2918, 2922 and 6657. The way it works is peek shell (pid 2918)is opened then it starts a ksh (pid 2922) session then from there the end user runs a command (pid 6657).

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Programming :: How To Kill Zombie Processes

Dec 3, 2010

I have my code with my fork in a server and each time a client connects one more process is created. i use this code for the handling of zombies

void sig_chld(int signo){//Diadikasia gia tin diagrafi twn 'zombies'
signal( SIGCHLD, sig_chld );//signal gia ton entopismo tou zombie
pid_t pid;

[code]....

but i need the server to kill each zombie after the client is disconnecting and not to have to press ctrl+c

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Programming :: Kill Script Kills Too Many Processes?

Oct 21, 2010

User 1 and User 2 each start a mono process with sudo:

"sudo mono user1.exe" "sudo mono user2.exe"

Each user has a kill.sh in their directory, which is being called by user1.exe/user2.exe to kill the process.

The script itself is

ps aux | grep 'mono user1.exe' | awk '{print $1}' | xargs kill

which in theory should pull *only* the PID of "mono user1.exe" and kill only that. The problem: It kills any and every single instance of mono that is running on my system, every userx.exe thats open. I am confused, as a simple "ps aux | grep 'mono user1.exe'" does only return the mono user1.exe process and not the others. "ps aux | grep 'mono'" returns them all though. how I can modify that script so that it only kills the specific process? Would "pkill -9 -f 'mono MCuser1.exe'" work as well - or would it too kill every instance of mono? I cant do a lot more of trial and error, its not good I am killing those instances accidently...

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Programming :: Perl - Multiple Child Processes In Parallel?

Sep 3, 2010

I'm looking for a way in Perl to be able to take a list of servers, ssh multiple commands to it and store the results. If I do this process serially, sometimes one server will hang the whole script and if it doesn't, it still takes hours to complete.

I'm thinking what I need to do is make a parent loop that calls out a separate process that passes the server name to the child sub process and then executes all the commands I have defined in its own process. If one server 'hangs', at least that won't stop the script from doing all the other servers in the list.

I'm guessing using the fork() command would serve me best, however, all the online descriptions I have found have been vague at best.

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Programming :: Perl Child Processes Become Zombie On A Multi-core Processor?

Apr 11, 2011

I have written a simple script which has to find required patterns from a bunch of files ( where each file is around 2 GB each,which contain the output of seq 1 10000000000000) on an 8 core machine.I am current forking 6 child processes which run simultaneously on 6 cores of the processor & have to search for the required pattern in 6 different files & inform the parent process when a pattern is found using a PIPE.

The problem is,when a child process is done reading a text file looking for a pattern,it is becoming a zombie process.It exits cleanly when i put a $SIG{CHLD} = "IGNORE"; in the script.Can any one tell me whats going on & how do i improve the communication between child and parent processes?

Code:
#!/bin/perl
use strict;

[code]...

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Ubuntu Servers :: Kill Processes With Name=x && %mem>y?

Sep 22, 2010

I have an issue on one of my servers whereby the [normally very helpful] du and tar programs are somehow using up too much or my system resources (du 40% mem, tar 20% mem) and causing problems. I am after a command which is able to kill a process without knowledge of a PID but by process name e.g. "du" and memory usage e.g. >= 10%.

Something along the lines of:
kill $(pgrep du) grep %MEM > 10

Although I know that is invalid syntax I cannot fathom the correct/best way to achieve this end!

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General :: Ftp Processes - How To Kill Them With A Cron

Dec 14, 2010

if i do a

ps aux | grep ftp

that would show me at least any active ftp connects started with the ftp command, right? Is there then a way to use that to somehow kill any stuck sessions that are older than an hour?

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General :: How To Find And Kill Remote Processes

Oct 28, 2010

I am developing a daemon that is acting up and I am now unable to create any new processes (ie. I cannot start a new process to kill the other rogue processes). So, I need to be able to kill the processes from a remote machine. How do I do "kill" remotely without admin privileges? If I cannot kill my own process from a remote machine as a normal user then tell me so I can mark it as the correct answer.

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Ubuntu :: Emergency Command To Kill Processes?

Jun 15, 2010

I'm working with Eclipse and it's starting to misbehave now and then which completely freezes my computer. Is there any emergency command to kill such a misbehaving process so I don't have to reboot my computer?

I already have a emergency xkill icon in my taskbar and a [Ctrl]+[F1] console with "> sudo killall eclipse" pretyped(!) but sometimes it's even to late for this. What I would need is a emergency command/console that gets a guaranteed amount of process time so I can kill these process.

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General :: Kill Remote Processes Started With SSH?

Aug 26, 2009

I've run into what is apparently an age-old SSH problem, which is that killing an ssh client process does not kill the remote process (unlike e.g. rsh). There seem to be lots of patches and a couple of open bugs on this topic that have been there for about 10 years or so... Having convinced myself by googling that there is no easy solution, I'm now looking for a workaround of some sort. I'm writing a testing framework so the processes I'm running remotely could be anything at all, i.e. I only have control of the client side. Also the remote processes are of course highly unstable and I need to be able to terminate them if they hang. ssh -t won't work for me as I don't necessarily have a terminal. Finding the remote process ID would be enough so I can do ssh <machine> kill <pid>, but I don't see any way to do that either. Just using ps, pgrep etc seems to suffer from not being able to uniquely identify the correct process, and killing the wrong process is of course very bad.

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General :: Kill All Idle User Processes ?

Nov 18, 2010

All the kill idle user processes scripts I've seen don't take into account that the user might have multiple sessions open. Such is the case with one of our clients. Currently, every hour or two I need to do the following:

This will get the TTY and idle time for all users.

For each idle time over a half hour, I do the following (TTY is the TTY from the previous command with a space.

I then kill those processes.

There must be a way to do this automatically in a bash or perl script. I've tried both, but can't seem to get things to work properly.

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General :: Kill All Processes Except Shell Window?

Aug 3, 2010

i was referring to an article given in following website.[URL] I was surprise to know that i can kill all running processes by using kill 0. However when i tried running the command nothing happened.

my machine details:

Code:

# lsb_release -a
LSB Version: :core-3.1-ia32:core-3.1-noarch:graphics-3.1-ia32:graphics-3.1-noarch
Distributor ID: EnterpriseEnterpriseServer
Description: Enterprise Linux Enterprise Linux Server release 5.2 (Carthage)
Release: 5.2
Codename: Carthage

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General :: Using Killall To Kill Mysql Processes?

Aug 14, 2009

I'm attempting to use 'killall' to kill all mysql processes, however after using the command mysql processes are still alive. 'killall mysql' says no processes were killed, and while 'killall mysql_safe' gives no message there are still mysql processes alive afterwards.

Code:

# killall mysql
mysql: no process killed
# killall mysqld_safe

[code].....

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General :: Automatically Kill Processes That Over Time Uses 95%+ Of Resources?

May 3, 2010

I don't know about your computer but when mine is working properly no process is sucking 95%+ over time. I would like to have some failsafe that kills any processes behaving like that. This comes to mind because when I woke up this morning my laptop had been crunching all night long on a stray chromium child process.

This can probably be done as a cron job, but before I make it a full time job creating something like this I'd thought I should check here. :) I hate reinventing the wheel.

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General :: Kill All The Processes That Have Dates Older Than Today?

Feb 11, 2011

I issue the command ps -aux | grep tony. It displays the following output

tony 10986 0.0 0.0 33532 464 ? S Feb01 0:00 vncconfig -iconic
tony 10988 0.0 0.0 86012 512 ? S Feb01 0:00 twm
tony 15553 0.0 0.0 92404 1848 ? S 10:34 0:00 sshd: tony@pts/34

[code]....

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General :: Writw Shell Script To Kill Processes?

Oct 19, 2010

I am trying to write a script which when executed should kill all currently running cat processes.

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General :: How To Tell The Kill Command To Ignore Processes If That Process Is Not Alive

Jun 18, 2010

How to tell the kill command to ignore processes if that process is not alive?

For example: 3453 is an alive process but 44534 is not.

kill -9 3453 44534

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General :: List And Kill Processes Accessing Internet In Linux?

Jul 28, 2011

How to kill the processes accessing Internet in background using terminal commands.Command to stop (disconnect) the processes accessing Internet.Command to kill the process accessing Internet.

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General :: Finding A Cmd That Will Kill All Processes That Are Accessing A Specific Filename?

Dec 16, 2009

I thought 'killall' would work, but I need to provide the "command" to kill. I'm really looking for a command that will kill all processes that have a particular file/directory open. Currently, my script fails on an 'umount' because there are several processes that have this filesystem open. The command 'lsof' is a good tool to determine which processes have a filesystem open, but I don't really want to write a script that parses through the 'lsof' output to capture PSIDs. Is there a linux command that can kill all processes that may have a particular filesystem open?

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Server :: Remove A Path - Kill The Zombie Processes - Multipath Errors?

Apr 12, 2011

i want to remove a path, but is in use.. How can i kill the zombie processes?

[Code]....

I guess i was wrong deleting first the disks that formed the path, but now how could i kill those zombie processes without a reboot?

[Code]....

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General :: Detect And Kill Zombie Processes Left From The Command Line Of A Terminal?

Apr 28, 2011

how do I detect and kill zombie processes left from the command line of a Linux terminal?

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General :: Kill Bash Processes "nicely"?

Dec 15, 2010

I'm trying to avoid kill -9 for the reasons described in the Useless Use of Kill -9 form letter. Is this function sufficient, or do I need to kill the kill processes after a timeout or take care of other subtleties?

soft_kill()
{
# Try to avoid forcing a kill
# @param $1: PID
kill $1 || kill -INT $1 || kill -HUP $1 ||
(echo "Could not kill $1" >&2; kill -KILL $1)
}

As an aside, what's a better name for this function? The current name reminds me of "Killing Me Softly", and manslaughter sounds a bit severe. Maybe spoon_kill (Google it)?

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Programming :: How To Kill Process Of Script

Aug 13, 2010

My script in /usr/bin displays the time on the console tty1 :

Quote:

if [ $(echo &>/dev/null > /dev/tty8; echo $?) -eq 0 ]
then
while [ 1 -lt 2 ]
do

[code].....

I'm started this script : /usr/bin/showtime How i can kill process of this script.

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Programming :: Kill More Than One Process In System?

Apr 27, 2010

I wanted to know how to kill more than one process in unix??
e.g- I have problem statement as
"Write a shell script to Kill all processes started from your login "

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Ubuntu :: Kill Doesn't Kill, Killall Is Powerless?

Oct 21, 2010

Today I run OpenOffice.org extensions update and it freezed fter showing me that everything was successful.When i xkilled it it refused tolaunch without any problem indication.killall soffice.bin didn't report "No process found" after 1,2,3...20 times.So I tried killall soffice.bin -i

Code:
$ sudo killall soffice.bin -i
Kill soffice.bin(3319) ? (y/N) y

[code]...

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Programming :: Kill Process More Than 3 Hours Old From Shell Command?

Nov 15, 2010

My server pretty often becomes full up php processes running which are not needed.Is there a way to search for and kill any php process that is more than 3 hours old? as I understand it, i need to use ps piped with awk. awk at the moment seems very complicated to me, do not how to start tackling it.

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Programming :: Socket Programming In Module Perl

Jul 21, 2010

Where is the perl module for programming with sockets?

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Programming :: Implement Two Periodical Processes In C++?

Jul 28, 2010

I am doing real time programming in C++, under Linux. I have two processes, let me say A and B. A process is being started periodically, every 5ms. B process is being started every 10ms. The process A is doing data processing. The process B is reading that data and displays it. I am confused about how to run periodically processes. The problem is that the period of process A should be as much as it is possible accurate (5ms). For the process B it isn't so important. I have created independent processes, each in one .cpp file, and I am starting them from bash file. Is that OK? I don't have to make child processes in order to have parallel processes?

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Programming :: Measure Time Of N Processes?

Oct 24, 2010

how can I measure time of N processes and N threads and then compare this time to prove that threads are faster than processes. understanding C code, or also for some good way to measure time of N processes and N threads for C.

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Programming :: Different Processes Using Same File Object

Sep 29, 2009

I have 2 completely different processes A and B (they do not have any relationship) suppose A opens a file with file descriptor 4 and B opens another file with file descriptor 5

Can process A use the fd 5 (i.e using the file object of processs B) by any means..if suppose i let the fd 4 of process A to point to the file object of process B(fd 5) will it work? is it safe?

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