08-04-2009
There is no process zero I thought, certainly not on my systems. Process one is of course init. Processes two through nine appear to be various reserved kernel things on my linux systems -- thread managers, disk swapping, hardware interrupts... but your mileage may vary. A lot of things in the kernel may have no process number at all, being the purpose of a kernel is to be the environment a process can exist in...
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question: for the below program
i just printed the value for pid, child pid and parent pid
why does it give me 6 values? i assume ppid is 28086
but can't figure out why there are 5 values printed instead of just two!
can someone comment on that!
#include<stdio.h>
#define DIM 8
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The below command returns full line.How can i get only PID from this line ie 15794 from the below example
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Hi ,
I am trying to get the PID using the following command:
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1. If I use an software application(which connects to the database in the server) in my local pc, how many PID should be registered? Would there be PID for the session and another PID for socket connection?
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Hi All,
In my project i have two process runs in the back end.
Once i start my project, and execute the command ps, i get below output:
PID TTY TIME CMD
9086 pts/1 0:00 ksh
9241 pts/1 0:02 java
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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,
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Hello people,
This question might seem to be a little naive but here it goes:
I want to know the PID of a script that is running in the background.
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ps -ef | grep Data_Downloader.sh
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I have searched to find an anwer to no avail, I hope you can help me.
I have a.ksh that many people call and a.ksh calls b.ksh
b.ksh is also invoked stand-alone by many people as well
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Hello,
I would like to know what this command means?
PID=$!
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LEARN ABOUT DEBIAN
syncer
SYNCER(4) BSD Kernel Interfaces Manual SYNCER(4)
NAME
syncer -- file system synchronizer kernel process
SYNOPSIS
syncer
DESCRIPTION
The syncer kernel process helps protect the integrity of disk volumes by flushing volatile cached file system data to disk.
The kernel places all vnode(9)'s in a number of queues. The syncer process works through the queues in a round-robin fashion, usually pro-
cessing one queue per second. For each vnode(9) on that queue, the syncer process forces a write out to disk of its dirty buffers.
The usual delay between the time buffers are dirtied and the time they are synced is controlled by the following sysctl(8) tunable variables:
Variable Default Description
kern.filedelay 30 time to delay syncing files
kern.dirdelay 29 time to delay syncing directories
kern.metadelay 28 time to delay syncing metadata
SEE ALSO
sync(2), fsck(8), sync(8), sysctl(8)
HISTORY
The syncer process is a descendant of the 'update' command, which appeared in Version 6 AT&T UNIX, and was usually started by /etc/rc when
the system went multi-user. A kernel initiated 'update' process first appeared in FreeBSD 2.0.
BUGS
It is possible on some systems that a sync(2) occurring simultaneously with a crash may cause file system damage. See fsck(8).
BSD
July 14, 2000 BSD