kill(0,-9) don't kill the process


Login or Register for Dates, Times and to Reply

 
Thread Tools Search this Thread
# 1  
kill(0,-9) don't kill the process

Hi all
i have simple c program , when i wish to kill the app
im using kill(0,-9) , but it seams this command don't do any thing and the program.
just ignore it .
what im doing wrong here ?
im using HP-UX ia64

Thanks
# 2  
You can kill a program with command:
kill -9 <PID of programme>
If you can not necessary permission about programme, You won't kill a programme.

Best regards,
Iliyan Varshilov

Last edited by ilko_partizan; 06-19-2007 at 04:45 AM..
# 3  
i need to kill from c program
# 4  
If you need killing a process from C programme, You will read about system call 'kill'.

http://www.freebsd.org/cgi/man.cgi?q...SE&format=html

Best regards,
Iliyan Varshilov

Last edited by ilko_partizan; 06-19-2007 at 05:42 AM..
# 5  
hi
i have read it also read this :
http://www.cs.cf.ac.uk/Dave/C/node24...00000000000000
that helped me understand this is my code:

Code:
int k=kill(getpid(),-9);
int r=raise(-9);

the return codes from k and r is -1
that is it proform the kill command but failled , the question is why ?
the getpid() also returns the right pid .
so what can i do next ?
how can i catch errno msg?
what else i can do to understand what is wrong ?

thanks
# 6  
You can get a error in string format from your programme with function 'strerror'.
This is part of code you needed:

Code:
#include <errno.h>
#include <stdio.h>

fprintf(stderr, "Error: %s\n", strerror(errno));

This man page describes 'errno'.
http://www.freebsd.org/cgi/man.cgi?q...SE&format=html

This man page describes 'strerror'.
http://www.freebsd.org/cgi/man.cgi?q...SE&format=html

Best regards,
Iliyan Varshilov

Last edited by ilko_partizan; 06-19-2007 at 05:07 AM..
# 7  
You can some mistakes in your code:

The first mistakes in line - 'kill(getpid(),-9);'
In the Unix basic systems have not a signal with id '-9', but have a signal with id '9'.
Try with int k=kill(getpid(),SIGKILL);

The second mistakes is similar that first - 'int r=raise(-9);' .

The third mistakes:
You don't kill process whit 'raise', because process one killed from 'k=kill(getpid(),SIGKILL);'

Do you really need killing a current process ?

Best regards,
Iliyan Varshilov

Last edited by ilko_partizan; 06-19-2007 at 07:23 AM..
Login or Register for Dates, Times and to Reply

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Why don't kill the script after 5s?

# watchdog process mainpid=$$ (sleep 5; kill $mainpid) & watchdogpid=$! sleep 100 kill $watchdogpid The sleep isn't be killed, I want the script to be killed ---------- Post updated at 03:03 AM ---------- Previous update was at 12:04 AM ---------- I just modify the format of my... (1 Reply)
Discussion started by: yanglei_fage
1 Replies

2. Shell Programming and Scripting

Kill an specific process ID using the KILL and GREP commands

Good afternoon I need to KILL a process in a single command sentence, for example: kill -9 `ps -aef | grep 'CAL255.4ge' | grep -v grep | awk '{print $2}'` That sentence Kills the process ID corresponding to the program CAL255.4ge. However it is possible that the same program... (6 Replies)
Discussion started by: enriquegm82
6 Replies

3. Solaris

Cannot kill a process with kill -9

Hello everyone, I have a process that I want to kill. I have tried kill-9 PID but it doesn't work. I have tried preap PID but it doesn't work too. The parent of my process is the process whose PID is 1, so I can't kill it. My OS is a Solaris 9. Can anyone help me understand what's going... (3 Replies)
Discussion started by: adilyos
3 Replies

4. UNIX for Dummies Questions & Answers

Script to start background process and then kill process

What I need to learn is how to use a script that launches background processes, and then kills those processes as needed. The script successfully launches the script. But how do I check to see if the job exists before I kill it? I know my problem is mostly failure to understand parameter... (4 Replies)
Discussion started by: holocene
4 Replies

5. Shell Programming and Scripting

Shell Script to Kill Process(number of process) Unix/Solaris

Hi Experts, we do have a shell script for Unix Solaris, which will kill all the process manullay, it used to work in my previous env, but now it is throwing this error.. could some one please help me to resolve it This is how we execute the script (and this is the requirement) ... (2 Replies)
Discussion started by: jonnyvic
2 Replies

6. Linux

Kill a process without using kill command

I want to Kill a process without using kill command as i don't have privileges to kill the process. I know the pid and i am using Linux 2.6.9 OS. (6 Replies)
Discussion started by: sudhamacs
6 Replies

7. Shell Programming and Scripting

Kill a process without using kill command

Sorry, posted the question in other forum. (0 Replies)
Discussion started by: sudhamacs
0 Replies

8. Shell Programming and Scripting

how to start a process and make it sleep for 5 mins and then kill that process

how to start a process and make it sleep for 5 mins and then kill that process (6 Replies)
Discussion started by: shrao
6 Replies

9. HP-UX

About kill process

I try to copy a file to another system using NFS, but it is very slow, i want to kill this process. I tried a kill -9 on this cp process but still can't terminate, without any error message. Are there any method can terminate it, except reboot :confused: THANKS (1 Reply)
Discussion started by: zetadhell
1 Replies

10. UNIX for Advanced & Expert Users

When kill doesnt work, how to kill a process ?

Hi All, I am unable to kill a process using kill command. I am using HP-UX system. I have tried with kill -9 and i have root privilages. How can i terminate this daemon ? ? ? Regards, Vijay Hegde (3 Replies)
Discussion started by: VijayHegde
3 Replies

Featured Tech Videos