In most Unix-like operating systems, the "ps" program displays the currently-running processes.

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ps and top show a different command name then what pkill and pgrep sees

Often times I want to kill process that I believe has changed its command name (I think through setproctitle() or something similar). Apparent pkill, pgrep, and friends do not read the new command ...
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79 views

how to get running processes

I'm trying to get running processes from a linux server but I having some doubts. If I get top exit I have: # top -b -n1 | head -n5 top - 16:18:19 up 60 days, 21:22, 8 users, load average: 0.03, ...
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888 views

How to remove the hint in the terminal?

As a normal user , when I run some command like ps\netstat, the terminal hint me: (Not all processes could be identified, non-owned process info will not be shown, you would have to be root to see ...
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172 views

ps -o pcpu on Debian Squeeze is giving meaningless numbers

I'm trying to get the CPU percentage for processes on a busy server out of ps, but it's giving me nonsensical numbers. Here's a truncated example: $ ps -eo pcpu,pid | sort -n %CPU PID ... 36.5 ...
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280 views

Who is 1014? I have no user on my system named 1014, so why is this httpd process run as 1014?

[root@home ~]# ps au | grep httpd 1014 9701 0.0 0.2 281620 3124 pts/24 Sl+ 18:41 0:00 ./bin/httpd -X root 9742 0.0 0.0 3084 720 pts/22 R+ 18:45 0:00 grep httpd By the ...
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748 views

load-causing processes disappearing from “top” ps -o pcpu shows bogus numbers

I administer a large number of servers, and I have this problem only with Ubuntu 10.04 LTS: I run a server under normal load (say load average 3.0 on an 8-core server). The "top" command shows ...
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1answer
584 views

Nginx/php-fpm processes falls in Uninterruptible sleep

I got nagios critical warning about a server, and when i checked ps -aux i found that all of nginx (php-fpm) are in Uninterruptible sleep www-data 1330 0.4 0.3 299992 108560 ? D 16:06 ...
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611 views

cygwin's ps -W doesn't show all processes when running through an ssh session

I hope this is the right place to ask this question: I have two machines (Win7) running cygwin. Machine A connects to Machine B through an ssh session. When I run ps -W in the ssh terminal on A, the ...
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ps shows that migration/* processes consume a lot of CPU, but top keep silence about them

here is the result of ps command, shown only first 10 lines ps aufx | head USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 2 0.0 0.0 0 0 ? S ...
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1k views

RHEL/Apache - meaning of WCHAN=“semtim”

What is the meaning of WCHAN="semtim"? ps -ylC httpd S UID PID PPID C PRI NI RSS SZ WCHAN TTY TIME CMD S 0 25330 1 0 78 0 16168 170563 - ? 00:00:14 httpd R ...
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Where is this extra number coming from in ps aux

A couple of processes returned by ps aux have an extra column. A monitoring tool I'm using is interpreting this as %CPU and reporting huge consumption. Here's the truncated output: USER PID ...
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412 views

Enable foreign users processes listing

how can I enable under Debian 6 to list the processes of a foreign user? I have the user nagios but this user can only list his own processes. Br
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229 views

Why doesn't ps resolve usernames including dashes

On Debian and Ubuntu (probably on other GNU systems too), when ps lists a process' user, it normally resolves its name, but when a process is running as a user which has a dash in its name, the user's ...
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2answers
319 views

How may I know the amount of memory used by each one of my apache sites?

When I run ps aux I get the following process table http://pastebin.com/NJsASBek that shows how much memory is being used by each one of the subprocess. We can see apache proceess are shown like this: ...
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1answer
426 views

Find site of apache from linux process table

I am using Ubuntu server and when I run ps aux I get the following process table http://pastebin.com/NJsASBek as we can see apache proceess are shown like this: www-data 26487 0.0 0.9 245476 14920 ...
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1k views

Excluding child processes from ps

Background: To reload app configuration I need to kill -HUP the parent processes' PIDs. To find PIDs I currently use ps auxf | grep gunicorn with the following example output: $ ps auxf | grep ...
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How to prevent “ps” reporting its own process?

$ ps | grep django 28006 ttys004 0:01.12 /usr/bin/python bin/django celeryd --beat 51393 ttys005 0:01.45 /usr/bin/python bin/django celeryd -l INFO 51472 ttys005 0:01.29 /usr/bin/python ...
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2answers
8k views

Who is user 500?

after runnning ps aux command I see this line 500 23931 0.0 0.6 63764 6880 ? S 08:49 0:01 /usr/sbin/sw-cp-serverd -f /etc/sw-cp-server/config I'm a beginner in this whole vps ...
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1answer
706 views

what is khostd?

I see this process but can't seem to find anything about it on Google: init─┬─crond ├─dbus-daemon ├─events/0 ├─events/1 ├─httpd───8*[httpd] ├─khelper ├─khostd───khostd ...
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23k views

what s+ S1+ T R+ mean in ps ax ps list

I run this command and got result this but not able to understand the result which node instance should i kill ps ax | grep node 23308 pts/3 S+ 0:00 sudo node index.js 23310 pts/3 Sl+ ...
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1answer
662 views

top, w, ps showing wrong CPU times

I've spotted this trait recently on some of my Ubuntu servers (10.04.2) on Amazon EC2 (not noticed this on any physical boxes), and can't quite comprehend how it's getting these figures. They can't be ...
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189 views

ps throws error /proc/PID: No such file or directory

Can you please tell me why "ps auxw" returned me the following error ? /proc/15067: No such file or directory The following is the process which was running at that time and was listed by PS. ftpib ...
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303 views

What's pgrp in this context?

Quoted from here. gdb puts the debugged process in its own pgrp and sets the terminal to that pgrp. (Try e.g. ps j on the PIDs of gdb and your program being debugged.) And what does it ...
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Where does the name in the “COMMAND” field of `ps aux` come from?

I understand it displays the command with arguments, or when unavailable the command in square brackets. But where do the names come from for processes such as passenger worker ruby instances, which ...
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845 views

How do I kill a runaway cronjob

I have a cronjob that is set to run constantly. It's a php file that streams data from twitter. However twitter goes down every once a while or we lose connection so I have cron checking back every ...
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158 views

Solaris ps output interpretation

I have a program that regularly forks and execs other programs. Occasionally, the programs that it starts get stuck in their processing and new programs never seem to start processing. We eventually ...
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1k views

Weird process CPU time output on Ubuntu under Amazon EC2

I have just started a large instance using ami-fa01f193 AMI. When I use ps aux, a bunch of random processes will show HUGE numbers for the CPU time used. Looks like some sort of overflow. Did someone ...
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2k views

“ps -ew” won't show wide output

It only shows the first 15 characters from /proc/pid/stat. But "ps -w pid" shows wide output. Why? Is this a bug? Thanks.
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3k views

How do get apache display url request in Top and PS?

Is there a way to get apache to display the url that it is handling in top and ps? This would help us nail down performance issues much more faster. Thanks.
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1k views

What is the meaning of this result from running 'lsof -i:8080'?

When I run the following command: lsof -i:8080 This is the result: node 32419 root 6u IPv4 122865 TCP localhost.localdomain:webcache (LISTEN) That result is different from that of ...
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208 views

ps segfaults on CentOS

I have a CentOS- 5.5 server with python2.6 installed from epel repo(disabled by default). It keeps segfaulting. I also have maatkit from epel repo installed. In addition, am running percona as a ...
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2k views

Linux: ps -awx vs. ps -awwx

Does anyone know the difference of ps -awx vs. ps -awwx? I'm tracking down some processes, and I see significantly more information when I add an additional "w". Does this work like in other cases ...
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163 views

After updating debian lenny, ps stops recognising my users

Since upgrading my debian lenny box with apt-get, ps seems to be behaving strangely, and also if i run top i see under the user column the ids, not the names. whoami => foo ps -U foo => ERROR: ...
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1k views

ps aux as non-root doesn't show all processes

i'm using an ubuntu 10.04 server... when i run ps aux as root i see all processes when i run ps aux as nonroot i see JUST the processes of the current user after a bit of research i found the ...
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370 views

What does “-k start” mean in the output of ps command

I try to run an apache instance. It doesn't run properly. I am trying to get some diagnostic information. I gave ps command and the apache instance that don't run properly are output with -k start. ...
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Monitor all newly spawned processes on a Linux machine

Sometimes a process comes and goes faster than I can ps aux, I tried watch -d -n0.1 "ps aux | tail" but again, that's restricted to 1/10th of a second. What I really want is to run a command and ...
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221 views

I want to find something and kill it

I keep running these two commands over and over: $ ps aux | grep php | grep -v grep www-data 3663 100 14.8 328620 304900 ? R 12:56 0:54 php /home/jason/projects/mcif/./symfony ...
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Can 'ps' show me only all processes I own, plus all their ancestors, in tree format?

Here's what I want to do: I want to get a tree-formatted list of processes from ps (as when you do ps auxwwf), but only of processes that are either owned by me, or are ancestors of processes owned by ...
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161 views

Is one type of options to ps preferred?

GNU ps supports BSD-style options, UNIX-style options, and GNU long options. Is using one of these types (in scripts and at the command line) preferred over the others? I get the impression from the ...
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23k views

Show full process name in top

I'm running a rails stack on ubuntu. When I ps -AF, I get a descriptive process name set by the apache module like 00:00:43 Rails: /var/www... which is really helpful in diagnosing load issues. ...
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In Linux, when I use the PS command, why do I see multiple lines for www-data?

I have a LAMP server that uses ubuntu 9.10, apache2, mysql5 and php5. When I login as root through the shell, I run a "ps aux" command and see something like the following www-data 3151 0.1 4.3 ...
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223 views

Provide Description for a Command for 'ps' Command Visibility

So the problem I want to find a tidy solution for is that when I log into a server (I have some Solaris and RHEL instances about), I try to find out what applications are running: $ ps -auxww | grep ...
4
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8k views

busybox - how to list process priority?

How to list process priority on an embedded linux with busybox?
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17k views

Getting full path of executables in ps auxwww output

Consider the following lines from a "ps auxwww" output: USER PID %CPU %MEM VSZ RSS TT STAT STARTED TIME COMMAND root 4262 0.0 0,1 76592 1104 s005 Ss 10:02am ...
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7k views

How is memory usage reported in Linux?

Using ps, I can see the size, the vsize (same as top's VIRT?), and the rss (same as top's RES?). (One more I see in top is SHR.) Could someone summarize for me what these different fields mean?
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How can you see clearly process data from ps -u $user?

The question is based on this thread. Problem: to find an installation within the process data I would like to know how you can see from the following data that I have the updates of MacPorts' ports ...