Linux Tutorials: ps commands examples

rajeshkumar created the topic: Useful Command for Process and Jobs in Unix/Linux

List out all background Job running in machine i.e. list current jobs
> jobs

How to sent Job into Background ie background the suspended job
> bg

How to run background jobs on foreground

1. Find out the job number using “jobs” command
2. Type follwoing fg %jobnumber

Whats the differnce between control c and control z in Linux

^C – kill the job running in the foreground
^Z – suspend the job running in the foreground

To kill a suspended or background process
> kill %jobnumber

To kill a job running in the foreground
> sleep 100
^C

List out all background job running by each user
ps -u

To see every process on the system using standard syntax:
> ps -ef

To see every process on the system using BSD syntax:
> ps ax

To print a process tree:
> ps -ejH

To get info about threads:
> ps -eLf

To see every process running as root (real & effective ID) in user format:
> ps -U root -u root u
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Rajesh Kumar
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Rajesh Kumar

I’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked at Cotocus and regularly write about technology, travel, investing, health, product reviews, and digital marketing through my various platforms.

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