ps is a command for printing information about running processes

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How to sort ps output to find processes realtime priority and identify processess currently occupied running queue

How to properly identify real-time processes currently occupied CPU queue and count them using ps? I know there is a bunch of fileds like prio,rtprio,pri,nice but do not know correct to use. It seems ...
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Output both ps and Date on one line, to a file?

I am building a rudimentary logging script, and want to capture the output of ps up 12345 So far I have: DATE2=`date +%Y-%m-%d:%H:%M:%S` echo ${DATE2} >> $filename ps up 12345 --no-headers &...
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How I can identify that a process has multiple instances

In my case I have nagios server where nagios service is running. But when I run ps -ef | grep nagios, I can see: nagios 3361 13524 0 15:42 ? 00:00:00 /usr/local/nagios/bin/nagios -d /usr/...
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What processes are used by DRM?

Whenever some content is DRM-protected, screenshots of such content are masked. Even using Terminal does not avoid such problems. Which processes in ps ax are used by DRM that is implemented by ...
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How to set an indentifier for multiple background processes?

I'm creating a custom game server and I have a .jar file to run it. I need to launch multiple game servers on a single virtual machine(like 15). I found, that I could just run them like this: java -...
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48 views

how to get PID and State of certain Processes

I have created a basic shell script that simply counts down from 1000. This is just for testing but could be any application/process. ##filename:test.sh## #!/bin/bash i=1000; while [ $i -gt 0 ]; do ...
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92 views

See if a script is running when using #!/usr/bin/env

I have tried migrating the shebang for my bash scripts from #!/bin/bash to #!/usr/bin/env bash, and some of them were broken because they relied on this code that checks for existing instances of ...
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How do I find the PID of a particular program?

I would like to write a Bash script that searches for PIDs matching a program's name (perhaps using ps ax | grep <PROGRAM> or something similar) and feeds them to pixelb's ps_mem script. ps_mem ...
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37 views

View current user process ancestors and formating the output

I'm using ps -eo ppid,pid,cmd to view all process, and how can I format the output to view like below? Only given PID and its ancestor will print (until init). 23464 current | 23211 bash | ...
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187 views

Sorting the output of ps does not work

I want to sort the output of the following command based on pcpu: ps -p 29492 -L -o pid,tid,psr,pcpu I tried the following: ps -p 29492 -L -o pid,tid,psr,pcpu --sort=pcpu But it doesn't seem to ...
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How to view all ancestor processes?

How can I view all the ancestors for all instances of a given process name?
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Help with the PS and TTY?

I have this question for you guys: I execute on a different shell 'sleep 600'. I open a different terminal and I executed 'ps' to see my current process , however , I dint see any sleep process. I ...
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121 views

Shell script to kill processes except those owned by user

I am Looking for some help in creating a script to kill processes, but return an error message if they are owned by root. Firstly I would like to say that I am a total beginner at this. At the moment ...
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2answers
119 views

How to get the title of the media playing in VLC or other media players using CLI?

I want to get the title of the media playing in VLC using the Command Line. The closest thing I currently have is this command. ps aux | grep vlc The output is pc 27636 2.1 2.3 1261964 ...
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42 views

How to find what processes run by the user right now?

Once again, I'm a beginner and I can't find the right command. I want to view the processes that I'm currently running.
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224 views

Creating an automated idle process kill script

I would like to implement a solution to a specific instance of the generic problem wherein idle users tie up resources. I know the user list can be retrieved with w, the associated PID with ps, and ...
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241 views

How do I convert the output of ps(1) to JSON?

I want to convert the output of the command ps to JSON in order to process it as structured data (with jq in this particular case). How do I do that? The output looks like the following: PID TTY ...
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ps wide output for a single process

The ps command has a ww output modifier (man page says this is "wide output, unlimited length"). This modifier seems to not work if prefixed with a hyphen (-ww) AND ps reports on a single process (...
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How to show quoted command list?

ps -o command shows each command on a separate line, with space separated, unquoted arguments: $ ps -o command COMMAND bash ps -o command This can be a problem when checking whether the quoting was ...
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List all processes without controlling terminal (only)?

Is there a portable way to do this? On Linux, I can use ps a -N but this option isn't available on other (POSIX) systems. Of course I can use grep '^?' with, say, -o tty,... but is there something ...
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70 views

Difference between ps process httpd and deamon process httpd

When I'm running command ps aux | grep httpd , it shows that httpd is in running state, but on running systemctl status httpd - its inactive and disabled. Why is it so?
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40 views

Display non-printable parameters in running processes

ps aux displays commands running on the server, but it does not display non-printable parameters in any sort of way that is useful. mycmd.sh: #!/bin/bash while true do sleep 5 done ...
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1answer
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how to get processor that thread is currently assigned to?

I've found such column in ps -elF: PSR processor that process is currently assigned to. I need something similar but for threads. ps huH p 1234 prints threads of process 1234, can I somehow add "...
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How to get the pid to the last background app

Following from this question: How to get the pid of the last executed command in shell script? The thread there is good and clear, but what if the command actually doesn't require a '&' at the ...
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Strange behavior of 'ps -o pgid'

Intro: I have a daemon, which spawn processes and I have to stop it all gracefully. The solution I found on web based on pgid: group_id=$(ps -o pgid= $(cat $pidfile)) if [ ! -z $group_id ]; then ...
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ps aux on aix,how to get PPID?

I know is possible with ps -ef But i want to get it with ps aux How to do it on aix? Thanks
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ps finds process, kill doesn't [duplicate]

Specifications [midas@localhost ~]$ uname -a Linux localhost.localdomain 4.0.4-301.fc22.x86_64 #1 SMP Thu May 21 13:10:33 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux and [midas@localhost ~]$ cat /etc/...
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Disabling column names in ps output

How to format output of ps -p command? To not show me something like this: PID TTY TIME CMD but just PIDs. I'm using Linux.
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Why does a process of a binary with only execute permission remain hidden in “ps” when using hidepid=2, if the user is not root?

I'm using hidepid=2 to mount /proc, so users can't see any but their own processes. A particular binary I want to use has been restricted to rwx--x--x permissions, so only its owner (root) can read it ...
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How to grep AND pattern with pipe

I wrote a piece of script similar to something below: srvc_location=`ps -ef| grep '${sandbox}.*pset' | head 1 | awk {print $9}` echo "SERVICE LOC : "$srvc_location But strangely this $srvc_location ...
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177 views

Figure out the PID of exact node.js application

Here is an output of my ps aux: ps aux | grep "node" root 2501 0.0 3.4 720400 68512 ? Sl 16:09 0:03 node /etc/skbx/host/skbx.js 8081 tula13 8082 8084 8085 10.8.0.6 root 20586 0....
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View full commands in ps output

When running ps with the -f option in PuTTY (to see the command corresponding to each process), lines which are longer than the terminal width are not fully visible (they are not wrapped on multiple ...
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What is the command in linux, or a utility to know the current comand status (process status)

For example when I write telnet abc.wtf the telnet session begins saying trying to connect so and so IP, but is there a command that I can type in and know what is the current process happening to ...
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List process by name excluding grep [duplicate]

I am trying to list all the ffmpeg processes that are currently running on Debian machine (Ubuntu 15). I use the following command: ps aux | grep 'ffmpeg' If only one ffmpeg process is running, I ...
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process Count of each user in ps aux command

How can i create a script to count process run by each user in ps aux. I used this ps aux | awk '{print $1}' | grep root | wc -l but it lists count of root user only . I want to list number of ...
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Filtering and extracting PIDs as space-separated list from ps using sed

I want to filter and format the output of ps -ax -o pid,command, but not sure what pipe to use for it. I want to filter those lines matching a fixed string at a fixed position, just keep the pids for ...
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49 views

Which tool can be used to configure the CPU priority of a process?

I know that you can use nice to re assign priorities of processes but which tool can be used to configure the CPU priority of a process ?
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157 views

defunct process - is it always a child process?

reading on what is a defunct process says that it is a child process which when it terminates/end is not properly handled/killed by its parent. but viewing on the below output servera> ps -ef | ...
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Why are arguments of a command altered when viewed by ps?

When I run my favorite app, why the arguments look different when viewed by ps? $ redshift -l 12.94:43.75 2>/dev/null 1>&2 & [1] 8637 $ ps -o cmd= -C redshift redshift -l 12.94 43.75 ...
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Killing PGIDs but proceses are respawning, how do I make it persistent?

I ran ps aux --forest -j to see parent and child processes. Here is an example: root 3744 3744 3744 0.0 0.2 77084 4160 ? Ss 09:34 0:00 /usr/sbin/cupsd -f lp 3747 3747 ...
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Is it better/preferred to kill all child processes by using PPID or PGID?

I need the ability to kill all child processes running under a particular parent. What would be the better option to do this? Using PPID or PGID? Something like this: pkill -TERM -P Would kill ...
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1k views

Why I can not use all the 100% potential of CPU?

I am using my computer clusters to run a MD C program but I can not use full potential of those clusters. But the this node have 16 CPUs and I also only give 15 jobs for those CPUs. But I can not ...
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Restrict a user from viewing other user's processes [duplicate]

Suppose there are two users : user1 & user2. Now we know that if I give top -u user1, I can see only the process respective to user1. But if I do top -u user2, I can see all the process running ...
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94 views

How to get PPID with PS using BSD options

I'm looking for a ps string that will give me all the output headers of "ps aux" but with the PPID. So far, I can only get the PPID column using ps -ef. I have tried numerous combinations but have ...
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How to start two processes piggie-backed? So the first finishes when the second finishes?

I'm running a script with ssh commands to a server behind a jump-host. Each time I want to run a command on my server in the secure network, I need to ssh into the jump-host (bastion) server and run ...
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Linux ps -elf command output, what is Process Flag meaning?

In output of ps -elf command in linux, we can recognize that process flag of 4 and 1, and process flag of 5, (sum of 1 and 4), but what is meaning of process flag 0 ? unfortunately, man does not help ...
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Get a refreshing list of running specific processes

I want to monitor running python processes with VSZ, RSS %MEM, %CPU etc. One of my priorities is a list refreshing every X seconds. I managed to come to the point of obtaining a refreshing list of ...
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Can I use ps aux, along with -o etime?

I want to list all the processes what are running, which I'm doing using either ps aux, or ps auxf, but I also want to get the elapsed time for all of them. I've seen the command ps -o etime,cmd, ...
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649 views

How can I know thread names that run on specific core

I am working in Java code. My code makes specific Java threads run on specific cores. In this code, I give names to Java threads. I need a Linux command that enables me to know the threads' names that ...
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55 views

How can you print arguments of command in ps?

sudo ps o gpid,comm reports something like 3029 bash but the command has parameters --arbitrary -other -searchword is there a way to display these arguments?