ps is a command for printing information about running processes

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ps to show only processes that match more than one condition (AND)

According to the ps man page: Except as described below, process selection options are additive. The default selection is discarded, and then the selected processes are added to the set of ...
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Getting transient PID from log into a PS search before it dies

I have a transient prelink process populating our audit log, but we're not sure what the process is. The error log gives us the PID, but it disappears pretty much instantly, as the process finishes ...
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Missing space in `ps` output near EOL

Note the missing space before foo: $ ps wafux | grep foo [....] 21742 0.0 0.0 10688 2296 pts/2 S+ 23:30 0:00 \_ grep --color=autofoo $ echo $COLUMNS 99 Compare with this: ...
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Unable to figure out what hogs my RAM [SOLVED] [closed]

Solution: It was file buffers causing the used RAM that didn't show up in htop. To resolve this issue I used the command sync && echo 3 | sudo tee /proc/sys/vm/drop_caches OP: I have a VM ...
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Using “ps -C java -o pid,user,cmd” Can I reduce the output of cmd?

I am trying to get this command down to just the essential information that I need. In the command cmd comes back with this output... /usr/local/jre1.7.0_51/bin/java -Dwd.tag=boxect ...
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awk - Group by and sum column values

I have command to list system process by memory usage: ps -A --sort -rss -o comm,pmem Which list a table like COMMAND %MEM firefox 28.2 chrome 5.4 compiz 4.8 ...
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The program pstree and htop showing threads with unique PIDS. How is this possible?

I ran the program pstree -p 31872 which printed the following output: ruby(31872)─┬─{ruby}(31906) └─{ruby}(32372) The man page for pstree says: Child threads of a process ...
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Possibly Compromised - ./brute xml2014 user x08 300?

I have a long list of a process called "./brute xml2014 user x08 300" when I type in "ps aux". What does this mean? Does this mean my server is being used as a DDoS bot? Here's a screenshot of what ...
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Why does “cat /tmp/out1 > /tmp/in2 &” appear as “bash” with the “ps” command?

Consider: mkfifo /tmp/out1 mkfifo /tmp/in2 cat /tmp/out1 > /tmp/in2 & When I run ps it appears as bash in the CMD section. Why?
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How to get whole command line from a process?

How can I get the command arguments or the whole command line from a running process using its process name? For example this process: # ps PID USER TIME COMMAND 1452 root 0:00 ...
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How to extract a key value pair from ps command

I am trying to extract application name from ps command: ps -af -u sas |grep "java"| grep -v "grep" above command produces the following: sas 24431 1 0 Oct10 ? 00:51:08 ...
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Format cputime for ps

I'm trying to write a script that can monitor a process's CPU usage over an interval (to create a graph). So far, this is the command I'm using ps -p $PROCID -o cputime,etimes My only concern is ...
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Format ps output without whitespace

I have the following ps command to get particular properties of all the running processes along with some properties: ps --no-headers -exo "uname,ppid,pid,etime,%cpu,%mem,args" I wish to have it ...
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why “ps -ef -u root -U root” also displays user processes?

ps -ef -u root -U root Also displays processes whose user is not root (the current user). Can someone explain me why ? -u : EUID -U : RUID
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how to close ports with no process attachedto it

how do you close ports if there are not processes attached to it? I used to run an application and they're using this ports previously for some reason the application crashed but if i restart the ...
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Suppress warning from ps -aux on Linux

When I run the ps command i get a warning saying Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ. How do i suppress this warning? Is there some system setting that i ...
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Understanding “vncserver -list” with respect to Xvnc processes

I have a pretty standard setup on a Centos 6.5 VM. I've configured VNC sessions to start at boot per CentOS's wiki VNCSERVERS="1:root 2:moe 3:curly" VNCSERVERARGS[1]="-geometry 640x480" ...
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How to find the PID of nginx process

I am trying to fix a problem with nginx and think that there is an nginx process running on my machine. When I run this command I get this output. $ ps aux -P | grep nginx 1000 3947 0.0 0.0 ...
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Extract tomcat parameters from ps output

I'm trying to write a little diagnostic tool and one of the functions I want from it is that I want to run is: ps axu | grep tomcat | grep -v grep | awk '{ print $<list of desired fields> }' ...
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What is an integer between the square brackets after the command name in ps output? [duplicate]

I have a PC running Debian Wheezy and if I execute ps -o command -p 1 then there is a 2 between the square brackets after the command name for init process: root@vserver:~# ps -o command -p 1 COMMAND ...
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Process history in Unix/Linux systems

I know that ps -efl shows running processes on *nix systems. I would like to check history of the (past) processes that have been run on a particular machine, preferably with all the information ps ...
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PS: what does “ps -o comm= -p $PPID” do

I have a script which does ps -o comm= -p $PPID. The explanation says this gets the parent process name. From the man page I found out -o means user defined format, comm means command and -p means ...
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Grepping a variable

I've written a simple init script to start and stop a Python script as a service. I have to be explicit about the version of Python I'm running, because this is on a CentOS 5 box with Python 2.4 & ...
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Does pgrep output ever include the parameters supplied to the process?

The snippet below (from an existing script) is used to check the xvfb processes and whether they are listening on a specific port: my_list=`pgrep -u $CurrentUserID -fl Xvfb | grep :${XVFBPORT}` ...
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How to see what processes WERE running?

Is there a chance to get the processes that RAN before my system crash? EDIT What I really want is to see the past processes. My system crashed & I want to know if a specific process was the ...
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Select PID by full command

I need to select the PID of a Java process. If I run something like this: ps -C java -o pid=, it will select all the Java processes. I am after a specific process where the command used to start is ...
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Is “ps -ef” deprecrated?

I was doing some work on a linux and the system admin told me that ps -ef is deprecated though it still works. I can't seem to find any documentation towards the same. Has ps -ef really been ...
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How can i get the process with the biggest pid?

How can I get the process with the biggest pid using ps?
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long format of ps command in Solaris

Jobs with a long command-line is not printing in Solaris: bash-3.2$ /usr/ucb/ps auxwww | grep ftf | awk '{print $NF}' | head -5 /proj/cmp01/app/btws/cfg/btw /proj/cmp01/app/btws/cfg/btw ...
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Single instance of script, but only with same arguments

I have this beautiful little code here that will exit from a script if there's another instance of it running: single_instance(){ if pidof -x "${0##*/}" -o %PPID >/dev/null; then exit ...
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Does this dispatcher produce zombie process?

I have such a dispatcher shell script. while read line do java TestProg $line & done < $tasklist On the zombie process Wikipedia page, it says if a parent fails to call wait, the ...
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top/ps/mpstat showing different output

When my top shows a load of 19/20 and my ps shows root@server:/home/nohup# ps -eo pcpu,pid,user,args | sort -k 1 -r | head -5 %CPU PID USER COMMAND 122131 18695 mysql /usr/sbin/mysqld xxxxx ...
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GREP for Processes by Directory and Kill it

I'm trying to grep for processes that originate from the /Applications/ directory (to kill them), but my grep command keeps catching some false ones as well. What am I doing wrong here? $ ps -ef | ...
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How to count how many shell/terminals are running?

I´m trying to count how many shell or terminal windows are currently running. I tried ps a|grep bash; ps a|grep tty; But it can be inaccurate.
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How can I find the process ID of a command started in another terminal?

If I run sleep 30 in one PuTTY window, how can I find the process ID of the sleep command from another PuTTY window?
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Job started by procmail does not appear in ps-output and cannot be stopped, even not after reboot

For testing purposes I called procmail by my .forward file |/usr/bin/procmail and by the rules in .procmailrc it started a job named "start", which was simply an infinite loop while true do ...
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How is it that I can attach strace to a process that isn't in the output of ps?

I'm trying to debug why our integration tests are taking so long and it looks like they're hanging part way through. I logged onto our test service and saw the following behaviour: root@colossus:~# ...
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unix process showing unusual cpu usage and timing in ps aux

USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 684 186912060 0.0 17140 988 ? Ss Feb24 54195432:44 root 7319 288895842 0.0 4096 668 ? S 04:30 ...
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CPU and RAM monitorization by parent id

I'm trying to monitor the CPU and RAM usage (in % of total for example) of a given process wich may spawn several processes. The parent process is /bin/rscw so I get its pid by ppid_bl=$(ps -ef | ...
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Which is the most precise command to get processes and system information? [closed]

I'm trying to evaluate performances of some active processes of mine on linux. Searching the internet I found that ps and top are the only command available for that. More precisely here, it says ...
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What is the difference in CPU utilization between 'ps aux' and 'ps -ef'?

I use Ubuntu 12.04.1 Linux. I see a difference between %CPU and C output format of ps command for a process. It is not clearly noted in the ps man page. Man pages says: CODE HEADER ...
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How to show CPU time for processes via top without 'root' procs

Okay, So I've been attempting this for about three hours now without success. How do you search/display/use the top command (or ps command if it works...) to output a list of all procs, sorted by CPU ...
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understanding ps -ef output

root@he:/home/he# ps -ef|grep init root 1 0 0 08:40 ? 00:00:02 /sbin/init root 3557 3545 0 10:09 pts/0 00:00:00 grep --color=auto init What are various columns ...
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Add sid field to ps -f output

I am reading the ps man page and there is something I don't understand. -f does full-format listing. This option can be combined with many other UNIX-style options to add additional columns. ...
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Different representation of bash in 'ps -f' command [duplicate]

I have two bash running; one is Terminal application that runs bash, the other one is xterm application that runs bash. With ps -f, I have -bash one, and bash at the other. What makes this ...
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How to identify executable path with its PID on AIX 5 or more

On AIX 5 or 6, `ps -ef` shows the executable full path randomly. Why and how to determine it? I find many thread through internet and also Unix & Linux and this stack overflow post about finding ...
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What is the meaning of “1-” in the output of ps?

This is the output of the command ps -ef | grep java on one of our machines. jboss 1965 1935 1 2013 ? 04:41:05 java XXXXXXXXXXXXXXXXX jboss 2170 2141 0 2013 ? 00:42:57 ...
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What does aux mean in `ps aux`?

ps aux seems to conveniently list all processes and their status and resource usage (Linux/BSD/MacOS), however I cannot comprehend the meaning of parameter aux using man ps. What does aux mean?
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How to check the process along with its arguments in process list?

I have written a script where i need to pass several arguments with the same script, the script is being executed after a certain time using cron. In order to make sure that there are no multiple ...
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Translate GNU ps flags to standard flags

I'm using oh-my-zsh and its ssh-agent plugin on OSX, but lately somebody upstream decided to use ps x. I'm not entirely sure what that even does, since I haven't used a GNU userland in something close ...