Sponsored Content
Top Forums UNIX for Dummies Questions & Answers what is the meaning of ppid 1? Post 302129918 by benefactr on Thursday 2nd of August 2007 09:06:42 AM
Old 08-02-2007
This may not be 100% correct, but most processes that have a ppid of 1 are the system processes that are started up, tty's and other things. You can also have this when you kill the parent and it still had some child process out there running. Like if you killed cron and it had jobs running, those running processes would have a 1 on them.
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

strange pid and ppid problem

Hi all, Please look into the following code : int main() { char command; int pid, ppid; ppid = getpid(); /* Get the parent pid */ pid = fork(); /* Fork */ if ( pid ==0 ) { sprintf( command, " gdb a.out %d ", ppid ); printf( "Command line is %s\n", command ); system( command... (3 Replies)
Discussion started by: asvija
3 Replies

2. Shell Programming and Scripting

Need a script to kill processes with PPID of 1

Hi, I have been trying to come up with a script to run as a cron job to kill any processes that have PPID of 1. I have created a file that contains the PID and the PPID. How can I read this file and then execute a kill on any PID where PPID is 1. The file looks like this: 4904 1 4455 1... (5 Replies)
Discussion started by: lbaysdon
5 Replies

3. UNIX for Advanced & Expert Users

' ps v PPID' command and real memory

hi Guys, Just wondering whether if I execute the ps v 1818740 and I get the below ouput what column should I use If I need to calculate how much real memory (private) is use by those process. Thanks. PID TTY STAT TIME PGIN SIZE RSS LIM TSIZ TRS %CPU %MEM COMMAND ... (1 Reply)
Discussion started by: hariza
1 Replies

4. Solaris

why process PPID changes to 1

Hi All, I have just started using SUN Solaris o.s version is :SunOS spdwa013(my server name) 5.8 Generic_117350-61 sun4u sparc SUNW,Sun-Fire-480R My problem is that i have some processes running on that server they have a PID and a PPID. But sometimes the PPID for a particular process... (2 Replies)
Discussion started by: usha rao
2 Replies

5. UNIX for Dummies Questions & Answers

Starting a process whose ppid should be 1

How can I start a process with ppid as 1 instead of my current shell pid? (2 Replies)
Discussion started by: siba.s.nayak
2 Replies

6. Shell Programming and Scripting

Shall I go for uid or ppid?

Hi Guys, I'd like to ask your advice on the following, I've written this script to terminate a given process by name: #!/bin/bash echo 'Please enter the process you wish to terminate' read process pid=$(pidof $process) kill -9 $pid echo $2 to make it safer I want it to reject the... (4 Replies)
Discussion started by: Lora Graham
4 Replies

7. Solaris

Start process independent from TERMINAL (or also with PPID 1)

Hi *, please, I need fast tip (help). I have a process starting through /etc/rc3.d/xxxx script. However, sometimes (mostly because of testing reasons) I need to stop the process, change something and then start it again. But: 1) when I start it in terminal, the process dies when I leave the... (2 Replies)
Discussion started by: freeangel
2 Replies

8. UNIX for Advanced & Expert Users

PPID differs in script and prompt

I tried several times to get answer to the below problem. Someone can please help me? $ cat p1.sh #!/bin/sh `./c1.sh &` while # indefinite loop do x=5; done $ cat c1.sh # sleep for 10 sec and exit #!/bin/sh sleep 10; Execute P1 as ./p1 & $ ps -eaf | grep c1... (1 Reply)
Discussion started by: alexalex1
1 Replies

9. UNIX for Dummies Questions & Answers

Process Name from PPID

Hi, I am currently trying to pin down a process NAME (could be a cron job or a tty) in Solaris. First I obtained a pid and then a ppid. I want to take the PPID and from there find the program/process that is making the VSH go high (cpu usage). I am currently trying to go up the chain using PS... (2 Replies)
Discussion started by: troystevens
2 Replies

10. UNIX for Dummies Questions & Answers

PID and PPID - please explain :(-

Hi, I need some help understanding PID and PPID that is shown by the ps -ef output. OS is Solaris 5.8. :wall: There are several Oracle databases and processes running on this server and they all have the same PPID. Does that mean they are all spawned off the same startup script? I then... (1 Reply)
Discussion started by: newbie_01
1 Replies
tapset::context(3stap)													    tapset::context(3stap)

NAME
tapset::context - systemtap context tapset DESCRIPTION
Context functions provide additional information about where an event occurred. These functions can provide information such as a back- trace to where the event occurred and the current register values for the processor. print_regs Print a register dump See function::print_regs(3stap) for details. pp Returns the active probe point See function::pp(3stap) for details. ppfunc Returns the function name parsed from pp() See function::ppfunc(3stap) for details. probe_type The low level probe handler type of the current probe. See function::probe_type(3stap) for details. execname Returns the execname of a target process (or group of processes) See function::execname(3stap) for details. pid Returns the ID of a target process See function::pid(3stap) for details. tid Returns the thread ID of a target process See function::tid(3stap) for details. ppid Returns the process ID of a target process's parent process See function::ppid(3stap) for details. pgrp Returns the process group ID of the current process See function::pgrp(3stap) for details. sid Returns the session ID of the current process See function::sid(3stap) for details. pexecname Returns the execname of a target process's parent process See function::pexecname(3stap) for details. gid Returns the group ID of a target process See function::gid(3stap) for details. egid Returns the effective gid of a target process See function::egid(3stap) for details. uid Returns the user ID of a target process See function::uid(3stap) for details. euid Return the effective uid of a target process See function::euid(3stap) for details. is_myproc Determines if the current probe point has occurred in the user's own process See function::is_myproc(3stap) for details. cpuid Returns the current cpu number See function::cpuid(3stap) for details. cpu Returns the current cpu number See function::cpu(3stap) for details. registers_valid Determines validity of register() and u_register() in current context See function::registers_valid(3stap) for details. user_mode Determines if probe point occurs in user-mode See function::user_mode(3stap) for details. is_return Whether the current probe context is a return probe See function::is_return(3stap) for details. target Return the process ID of the target process See function::target(3stap) for details. module_name The module name of the current script See function::module_name(3stap) for details. stp_pid The process id of the stapio process See function::stp_pid(3stap) for details. remote_id The index of this instance in a remote execution. See function::remote_id(3stap) for details. remote_uri The name of this instance in a remote execution. See function::remote_uri(3stap) for details. stack_size Return the size of the kernel stack See function::stack_size(3stap) for details. stack_used Returns the amount of kernel stack used See function::stack_used(3stap) for details. stack_unused Returns the amount of kernel stack currently available See function::stack_unused(3stap) for details. addr Address of the current probe point. See function::addr(3stap) for details. uaddr User space address of current running task See function::uaddr(3stap) for details. cmdline_args Fetch command line arguments from current process See function::cmdline_args(3stap) for details. cmdline_arg Fetch a command line argument See function::cmdline_arg(3stap) for details. cmdline_str Fetch all command line arguments from current process See function::cmdline_str(3stap) for details. SEE ALSO
function::print_regs(3stap), function::pp(3stap), function::ppfunc(3stap), function::probe_type(3stap), function::execname(3stap), function::pid(3stap), function::tid(3stap), function::ppid(3stap), function::pgrp(3stap), function::sid(3stap), function::pexecname(3stap), function::gid(3stap), function::egid(3stap), function::uid(3stap), function::euid(3stap), function::is_myproc(3stap), function::cpuid(3stap), function::cpu(3stap), function::registers_valid(3stap), function::user_mode(3stap), function::is_return(3stap), function::target(3stap), function::module_name(3stap), function::stp_pid(3stap), function::remote_id(3stap), function::remote_uri(3stap), function::stack_size(3stap), function::stack_used(3stap), function::stack_unused(3stap), function::addr(3stap), function::uaddr(3stap), function::cmdline_args(3stap), function::cmdline_arg(3stap), function::cmdline_str(3stap), stap(1), stapprobes(3stap) IBM
--- tapset::context(3stap)
All times are GMT -4. The time now is 12:21 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy