Sponsored Content
Top Forums Shell Programming and Scripting Capturing PIDs of same process at different instances Post 302569843 by Corona688 on Tuesday 1st of November 2011 05:59:01 PM
Old 11-01-2011
Instead of using system, use fork(). This creates a clone of your process. Check the return value of fork() -- if you got zero, you're the clone. Then exec() into what you want, which will replace the clone with whatever command you exec()ed.

The parent gets the child's PID from fork() instead.

You can kill them with kill(), or wait for them with wait().
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

capturing process id

I am newbie to unix shells world. I am trying to capture a background process id into a file so that it can be killed later. this process is basically a java program running in background as: java TestApp & this returning process id immediately. So how can i redirect that pid into a file.... (1 Reply)
Discussion started by: bvreddy
1 Replies

2. HP-UX

PIDs of background process

How to track the pid of a background child process(shell script) from a parent script ? For example :- $ sleep 10000 & 4220 where 4220 is the pid of bg process sleep. Now my requirement is to keep the sleep statement in a shell script(test.ksh) and will be invoking it from... (3 Replies)
Discussion started by: ramkumar
3 Replies

3. UNIX for Dummies Questions & Answers

Capturing the Process ID of a process

hi Everybody I am trying to capture process id of a process which has been started through the execution of a shell script CLASSPATH=. CLASSPATH=${CLASSPATH}:sampleswing.jar java -cp ${CLASSPATH} Sample echo $! > pid.sh above is the simple script file called swings.sh When i... (8 Replies)
Discussion started by: appleforme1415
8 Replies

4. Shell Programming and Scripting

Checking for multiple instances of a process

Hi I have a scenario where i need to check multiple instances of a running shell script (abc.sh) . How can I find from inside a running shell script whether any other instance of the same script is running or not? If any other instance of same shell script is running I need to exit from... (4 Replies)
Discussion started by: raghu.amilineni
4 Replies

5. AIX

Capturing Process on AIX boxes - IMP

Guys we all know what command 'COLUMNS=2047 /usr/bin/ps –eo pid,ppid,uid,user,args' does.It prints 5-column output for the running processes on a AIX box. Here is simple thing i need: I need to insert this tabular data in a db2 table. How do i need? I have created table with these five... (0 Replies)
Discussion started by: ak835
0 Replies

6. Shell Programming and Scripting

Capturing running process name

i'm looking to have my script capture it's own process name while running. i'm going to use this in the output of the script to track which script produced which output file(s). when i run: ps -ef | grep processname i only get as results a ps -ef listing for the grep inside my... (6 Replies)
Discussion started by: danmauer
6 Replies

7. Shell Programming and Scripting

Capturing the CPU% used by a process

Hi, I just wonder I need to write a script where I can check if a particular process is consuming X amount of CPU. I was thinking of using the ps command but doesn't seems to work. Any ideas. Thanks. (2 Replies)
Discussion started by: arizah
2 Replies

8. Shell Programming and Scripting

Capturing the killed process logs

I have two set of questions. 1) To skip killing some process automatically. 2) To kill other process and capture their log. I have set of process, some needs to be killed gracefully and others should be skipped. Listed are the process. adm 1522... (1 Reply)
Discussion started by: murali1687
1 Replies

9. Shell Programming and Scripting

Capturing the return code from background process

Hi All, I was out not working on unix from quite sometime and came back recently. I would really appreciate a help on one of the issue I am facing.... I am trying to kick off the CodeNameProcess.sh in PARALLEL for all the available codes. The script runs fine in parallel. Let say there are... (1 Reply)
Discussion started by: rkumar28
1 Replies

10. Hardware

CUDA GPU terminates process at random instances

I am trying to start troubleshooting an error on a virtual server that uses the ubuntu 14.04 OS. Basically what happens (seeming random) is that the GPU stops processing and terminates. What Imean by seeming random is that for 3 runs there is no error then on run 4 the error appears. It has... (2 Replies)
Discussion started by: cmccabe
2 Replies
GStreamer(1)															      GStreamer(1)

NAME
gst-launch-ext - Run a predefined GStreamer pipeline SYNOPSIS
gst-launch-ext filename [filename...] DESCRIPTION
gst-launch-ext is a tool that is used to run a basic predefined GStreamer pipeline. This application is only used as a quick test to ensure proper working of codecs and GStreamer. It doesn't handle more advanced features like synchronisation. All supported formats in GStreamer should be playable by simply typing: gst-launch-ext filename It will also print out the pipeline it uses, so you can customize it using cut and paste. CONFIGURATION
gst-launch-ext can be configured by creating a .gst file in your home directory. This is a perl-style configuration file and can override the defaults for audio and video output sinks. Here is an example .gst file that implements the same defaults as hard-coded in the script : $cfg{AUDIOSINK} = "osssink"; $cfg{VIDEOSINK} = "colorspace ! xvideosink"; You can change osssink to any of esdsink, alsasink, jacksink (if you have the plug-in), and you can change xvideosink to aasink or sdlvideosink. Other plug-ins might be used as well if GStreamer has them. SEE ALSO
gst-guilaunch(1), gst-complete(1), gst-register(1), gst-inspect(1), gst-launch(1), AUTHOR
The GStreamer team at http://gstreamer.net/ February 2002 GStreamer(1)
All times are GMT -4. The time now is 09:00 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy