ps is a Unix operating system command and the like used to display the running processes.

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New process being created while checking with 'if' in bash

ps -ef | while read line; do for i in $line; do if [ $i = 'bash' ]; then echo $line; fi; done; done; unset i; The command runs properly displaying the Bash ...
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630 views

How can I graph memory usage by user?

Basically, I want to graph the memory usage with each username as title, as time passes by. I would set that script as a cron job, to create a graph that shows memory usage of certain usernames. How ...
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ps and top give different CPU usage

I've seen a few posts similar to this, most notably here, but wasn't quite satisfied with the answers. I'm comparing top and ps results on a specific process and see huge discrepancies in CPU usage. ...
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“ps -ef | grep java” using java program [closed]

I'm attempting to execute ps -ef | grep java through java program. Here is my code- // String sudoScript = "sh -c \"ps -ef | grep java\""; String sudoScript = "ps -ef | grep java"; try { ...
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What memory statistics does Linux' ps command really display?

Consider the following pmap output of a simple tail process on Linux: $ pmap -x 3974 3974: tail -F /var/log/syslog Address Kbytes RSS Dirty Mode Mapping 0000000000400000 60 ...
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Please explain the ps -aef on rhel

What does pts/2 indicate in the output below? Why there is no such for other dd processes? $ ps -aef |grep dd root 6553672 15073352 3 02:32:19 - 0:01 dd of=/dev/lv01 bs=1024k padmin ...
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What units does `ps -o` report memory usage in?

I'm using a script - memusg - to report the peak memory usage of my rails app. The script uses ps -o to measure memory usage. My question is: what units does ps -o report memory usage in? The script ...
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236 views

How do I extend unix “ps -ef” command to see more info

I need to grep process by information containing in CMD column, but this column strings is cut(limited) and needed info is lost. Please suggest how can I enlarge string size allowed for CMD column.
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Start java process with different names?

I have 2 eclipse and 2 servers running If i make a ps -C java i see something like: 2460 pts/1 00:03:08 java 2908 pts/3 00:00:05 java 3045 pts/4 00:00:17 java 3284 pts/3 00:01:40 java ...
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180 views

remove the zombie process from the output of ps

I m not looking to kill a zombie process. I m looking to avoid the display of zombie process in the ps command. Are there an option to add to ps command inorder to avoid displaying the zombie ...
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92 views

How to determine full command with args given a pid (or port in use)

I've got this nice bash function for telling me the pid using a port: using_port() { lsof -i:${1} } Output looks like this: COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME ...
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Virtual memory usage vs resident set size

When I launch php-script and do ps aux and have huge number for VSZ, about 450MB. Whilst RSS -- Resident set size -- is about 10MB. From wikipedia, Resident set size is is the portion of a process's ...
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101 views

Linux Command to display only mingetty's info

I am looking for a command that will give only mingetty's information. How can you construct the command to find only mingetty data and find the PPID in Linux?
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388 views

Name of Rake task in ps output?

pid = `ps -ef | grep -v grep | grep rake | awk '{print $2}'` This is a bunch of ruby code that executes piped linux commands. While I usually just use ps aux, just because, I noticed that the rake ...
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965 views

What determines the process name in ps aux?

I'm trying to track down this script called ./launch.sh, that on my machine is currently in an infinite loop in which it calls a Java program, immediately crashes, then sleeps for 3 seconds. ps aux ...
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277 views

Which processes were running yesterday?

We have a production machine that keeps crashing on regular basis. Our staging environments run fine, but when the application is deployed to production, the production machine crashes after two or ...
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740 views

awk - max value of a rolling average

I have a bash command which gives me the highest value in the 9th column of a file: cat "log.txt" | grep 1923 | awk '{print $9}' | sort -n | tail -1 log.txt is a log of CPU usage for process 1923 &...
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How to get only the user, the pid and the command run for a specific process? (Ubuntu 11.10)

When I do ps -ef|grep python I get the following: myusername 4492 2994 0 10:32 pts/0 00:00:01 /home/myusername/.virtualenvs/myproject/bin/ipython manage.py runserver root 6665 1 0 ...
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ps comm format always cuts the process name

I am trying to invoke ps -o comm:1024 --pid 1391 --cols 1024 -w in the hope of getting the full process name (and only that), but I always end up with this COMMAND notification-ar while the process ...
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kill - no process found

when I list my processes I have: root@adam-ThinkPad-T410:~# ps -e | grep signals 11641 pts/0 00:00:00 signals 11642 pts/0 00:00:00 signals 11643 pts/0 00:00:00 signals but when I ...
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rsync … blocked for more than 120 seconds

I'm running an rsync between two external USB 2TB drives to make a copy on a CentOS 5.9 server. It appears to have stalled, and it hangs when I cd to the source drive in the copy, while the ...
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ps - Summing up memory usages

The more I read, the more confused I get.. I want to generate a list of processes and their memory consumption (physical + virtual). So far, this is what I have done: I take the VSZ of each process,...
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367 views

Kill a process in Unix

When I execute theps -fea | grep ssh-agent command, I get the following output: tomcat 29057 14086 0 Jan 09 ? 0:00 ssh-agent oracle 1964 14086 0 Nov 26 ? 0:00 ssh-...
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How to list a process tree on windowss?

I know in linux it's very usefull the pstree command and something like that is what i'm looking for... but how to make a detailed process list (tree) on windows terminal?
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find any script which is running for more than say 30 minutes in Linux System

Please share command to find any script which is running for more than say 30 minutes. in Linux System
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flag to 'ps' command that can filter on arguments?

I know the argument "-C" which can filter on the command. But in my scenario I may have some processes with the same process name and different args. How to filter on these args? (I know I could ...
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Multiple pages per sheet (PDF)

I use the following ghostscript commands pdf2ps input.pdf - | psnup -pA4 -4 >> output.ps ps2pdf output.ps output.pdf rm output.ps to merge multiple pages (in this case 4) from input file to ...
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why ps -ef show the time like this

When I run the ps -ef command I receive something like this: root 26728 26725 99 Sep25 ? 1184018564-02:43:14 java -jar /root/TaskManager.jar I need to understand why the time is shown ...
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PStree with memory use?

Is there any utility out there for linux that will give me a PStree with memory use per process? I guess it's possible in theory to grab a pstree with pids, then comb ps itself for the memory use for ...
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How do I get my Unix ps version number?

I tried these, all without success: ps --version ps -version ps -v ps -V man ps, searching for version information Specs: Mac OS X 10.8.2 MacBook Pro 2009
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Why do processes on Mac not add up to total physical memory?

Running ps -ax -O 'rss user %mem should summon all the processes that are currently contributing to either Active or Wired , in the Mac definitions of "Active + Wired + Inactive + Free = Total ...
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How to select processes by command name when using ps in Mac OS X

In Linux, I use ps -C command_name to select processes of specified command name. But it doesn't work in Mac OS X. I read the the man page of ps carefully, but just can not find any option to do this. ...
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How to kill all process of a program?

Sometimes I get some problem with Skype or Netbeans. So, when I want to kill all processes of them and restart them the only way I know is to perform $ ps aux | grep skype get all process id ...
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Running ps with clauses as AND instead of OR

I am looking to see if a specific process is running as a specific user. For which I can do this ps --no-headers -C command -o user | grep user Which is pretty neat, it however gets slightly ugly ...
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Excluding grep from process list

I have cobbled together a command to return the process ID of a running daemon: ps aux | grep daemon_name | awk "{ print \$2 }" It works perfectly and returns the PID, but it also returns a second ...
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How to get the current timestamp when using 'ps' in a Bash script?

I am writing a shell script that gets all the current processes running, and pipes them into grep to filter out the ones I need. But I also need it to give me a timestamp, either when the ps occurs, ...
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991 views

Linux Memory Displays Half Used But No Processes Seem to Be Using It

I am running a Java script on a Fedora Core Release 6 server (Linux 2.6.19-1.2911.6.5.fc6xen x86_64) and am concerned about a lack of memory. The box has 2 GB of memory in total. Running "free -tm" ...
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ps warns me about bad syntax with “aux” options

When I attempt to run the command ps with the flags/switches/options aux I get the following message. If I run the command without grep, no message is displayed. What am I doing wrong? ps -aux | grep ...
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Why does ps aux displays a number instead of a username?

Running ps aux just gave me the following output: ... www-data 26254 0.0 0.7 27304 3544 ? S 15:07 0:00 /usr/sbin/apache2 -k start 1001 25807 0.8 0.8 48444 4332 ? Sl ...
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ps: How can i recursively get all child process for a given pid

How can I get the entire process tree spawned by a given process displayed as a tree and only that tree i.e. no other processes? The output could e.g. look like 4378 ? Ss 0:10 SCREEN ...
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Listing processes for a certain timeframe

ps -fu username lists all processes currently running. Is there a way to list all processes that were running in a time period ? like, the ones that ran yesterday (and are no longer running)
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memory usage by using ps in linux

I am trying to compare memory usage between my program and sample program which is given by using ps in linux mine and sample is written by c++ and I am not sure how to compare how much memory those ...
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grep -c gives inconsistent outputs

I am trying to determine the number of processes that are running via the following command line: ps aux | grep -c 'Xvfb :1' When the process "fiji :1" is not running I sometimes get a value of 0 ...
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csh script to return number of process running

I want to set the number of a particular process that are running to a variable. The first line of the csh script below is the problem as it sets the variable "number" as ps aux | grep -c fiji ...
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pdf file resists converting to ps and printing

I'd like to print this file: http://florian-konnertz.de/public/Psychology_of_Computer_Programming.pdf I cant find out how I do that here. I tried on our Kyocera FD 2000 beside from pdf viewers from ...
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How to find out from which folder a process is running?

In *nix you can use ps to see which process are running. But if an executable has multiple homonimous files in a device, we can't figure where it was invoked from. This is slightly different from my ...
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How to convert PDF to ASCII Postscript so the contained text can be searched/replaced?

According to Chapter 3.2 of the PostScript Language Reference, "there are three encodings for the PostScript language:ASCII, binary token, and binary object sequence". We've been generating PDF files ...
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Unix ps -l priority

Why does unix ps -l whows one number in column "PRI" but in same time ps -o pri shows another number? P.S. cpu and nice are zero for those processes
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Unix : List children processes for a given pid

What I need is, given a process id, list all his children without any clutter (table header, other columns than the pid) What I have is : ps h --ppid $PID Which gives me: 26277 pts/13 S+ 0:...
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How can I convert a PostScript file into a PDF where text can be selected?

I'm on a Mac. I need text to be selectable in applications such as Preview.app, so that I can highlight it. If I open the PS file directly in Preview, I cannot select text. I have already tried ...