Sponsored Content
Full Discussion: Pid file and process check
Top Forums UNIX for Beginners Questions & Answers Pid file and process check Post 303036937 by MadeInGermany on Thursday 18th of July 2019 03:14:32 AM
Old 07-18-2019
/var/run/ is supposed to be writable and volatile: to be cleaned during system boot, or an in-memory file system (e.g. tmpfs).
The daemon process should create the pidfile, and remove it when it is killed, in an exit handler that captures all kill signals. (Please do not kill -9 the daemon process!)
Further, an init script can check for an existing pidfile, if yes then check for validity and refuse to start a second daemon process. If the daemon-process runs as non-root, the init script creates a subdirectory and chowns it to the daemon user.

AIX generates random and big (7 or 8 digits) pids.
These 2 Users Gave Thanks to MadeInGermany For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Process PID

Hi Friends :p I have a little problem please help me out. I have a Unix based OS Sun Server having oracle 8i as database on it. The server has one client with windows OS. The client uses developer 2000 (GUI) to run query and run processes. I want to know how can I know the PID of a process run... (3 Replies)
Discussion started by: vanand420
3 Replies

2. Solaris

getting pid of process

hi all, Is there a simple script anyone could through out to me, to find the pid of a process given the name. I actually need to bind this pid to a processor set. I would probably put these comamns in a shell script which would have. a) kick start the executable b) get the pid c) bind it to a... (10 Replies)
Discussion started by: Naanu
10 Replies

3. UNIX for Dummies Questions & Answers

Need to get pid of a process and have to store the pid in a variable

Hi, I need to get the pid of a process and have to store the pid in a variable and i want to use this value(pid) of the variable for some process. Please can anyone tell me how to get the pid of a process and store it in a variable. please help me on this. Thanks in advance, Amudha (7 Replies)
Discussion started by: samudha
7 Replies

4. Shell Programming and Scripting

Get an PID of particular process

Hi I have written a shell script to find and kill the particular process. Here in shell script i have written the code like cnt = $(ps -ef | grep Shree) echo $cnt I am getting the output root 2326 2317 0 14:39:46 pts/1 0:28 Shree -f fdc.fbconf FDCapp.fbapp Here I want to... (2 Replies)
Discussion started by: Shreedhar Naik
2 Replies

5. Shell Programming and Scripting

getting pid from a process

Hi all, i was able to redirect pid of process to a file in the following way ps aux|awk '$11 == "/Applications/ProjectX/DServer" >> /Applications/ProjectX/DServer.pid it works fine but if one folder name caontains space its not working like below ps aux|awk '$11 == "/Applications/Project\... (1 Reply)
Discussion started by: kirankumars
1 Replies

6. Programming

[C] Process pid by name

Hi I use linux OS. I've already written a function that allow me to get the process name by pid. (searching in /proc). Now I'd like to perform the inverse task.I mean get the process pid by its name. I could write a function that search in every folder in /proc for the process name, but i... (2 Replies)
Discussion started by: Dedalus
2 Replies

7. Shell Programming and Scripting

Check process running Status with PID

Good day I am fairly new to Shell Scripting. I want a script to check if a process is up by checking the process's PID and then return a value for when it's running which would be 0. If it isn't running it should give any other value that 0. Any Help is appreciated Regards (9 Replies)
Discussion started by: 1nsyz1on
9 Replies

8. UNIX for Dummies Questions & Answers

Check who is writing to a file? (pid)

Hello, is there a way to check who is writing to a file? (pid) Like someone starts a ftp transfer, is uploading a file and I'd need to know which pid is actually writing to it. Or is there a way to check which file a process is currently accessing? Greetings and thanks for all your... (4 Replies)
Discussion started by: TehOne
4 Replies

9. AIX

How to get process name from PID?

HI, i used ps -ef | grep 3539052 | grep -v grep and i got a output like ths root 3539052 3407918 0 May 07 - 709:31 /usr/sbin/syslogd but what i need is instead of full path /usr/sbin/syslogd i want only the process name that is 'syslogd' here. (3 Replies)
Discussion started by: sumanthupar
3 Replies

10. Shell Programming and Scripting

Shell script to report file size, pid and also kill the process

Hi All, Looking for a quick LINUX shell script which can continuously monitors the flle size, report the process which is creating a file greater than certain limit and also kill that process. Can someone please help me on this? (4 Replies)
Discussion started by: vasavimacherla
4 Replies
NETDUMP-SERVER(8)						  System Programs						 NETDUMP-SERVER(8)

NAME
netdump-server - handle crash dumps over the network SYNOPSIS
netdump-server [--port portnumber] [--concurrent number] [--pidfile path] [--daemon] [--help] [--usage] DESCRIPTION
Listens to the network for clients that crashes and uses the netdump protocol to recieve a memory dump and a stack trace. The memory dump and oops message are stored in a timestamped directory in /var/crash. The server can also run scripts when some events happen. OPTIONS
--port portnumber Specifies the IP port number for the netdump server to listen to. The default is 6666. --concurrent number You can limit the amount of concurrent dumps being done at any one time. If more clients than the specified maximum connects at one time the last ones will just be logged and then rebooted. --pidfile path Store a pidfile. The default service uses /var/run/ttywatch.pid. The default is not to write a pidfile. --daemon ttywatch should background itself and run as a daemon. EXAMPLES
netdump-server --daemon This launches the netdump-server and puts it in the background, listening for crashed clients. EXIT STATUS
Exit status is 0 for a clean exit and non-0 for a non-clean exit. FILES
/etc/netdump.conf A configuration file read by netdump-server on startup. It is a "key=value" style file. Currently it supports the options: port, max_concurrent_dumps, daemon and pidfile. /etc/init.d/netdump-server An init script to start a default system installation of netdump-server. This is normally turned off by default; use the command /sbin/chkconfig netdump-server on to enable the netdump-server service. /var/crash The main directory where the crash dump files are stored. Each dump is put in a subdirectory named with the ip of the crashed machine and the date and time of the crash. /var/crash/scripts This directory can contain scripts that are run at various times. They all get passed the ip of the crashing machine as the first argument, and each one except netdump-start gets the directory that the dump is written into as the second argument. netdump-start - This is called when a client connects to the server to tell it that it has just started the netdump client. This normally means that the machine just booted up. netdump-crash - This is run when a client reports that it has crashed. If it returns a non-zero value the dump request will be ignored and the client will be told to reboot immediately netdump-nospace - This is run when there is not enough diskspace for the dump of the crashed machine. If this script exits with a non-zero return value netdump-server will try once again (but only once) before giving up the dump. If this script exits with a zero return value, netdump-server will reboot the client without performing a dump. netdump-reboot - This is run when netdump-server is finished with a client and is about to tell the client to reboot itself. SEE ALSO
netdump(8) BUGS
Report any bugs you find to http://bugzilla.redhat.com/bugzilla AUTHOR
Alexander Larsson <alexl@redhat.com> Linux 14 Feb 2002 NETDUMP-SERVER(8)
All times are GMT -4. The time now is 07:11 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy