Its very clear on how to use ps -ax on a Mac to get the running processes, and grepping for the browser. That being said, I also know that browser extensions generally run on a different process from browser for security reasons... I've attempted to use ps -ax | grep Chrome to find the extension processes but I can't find it. Am I missing something?
ps -ax | grep 'Google Chrome Helper' | grep "extension-process"
This should work. You can also go to "Chrome->Options->More Tools->Task Manager" to get the exact PID of your installed extension.
Related
I have a centos server in which I have install perl package to run some perl scripts. today I run some perl scripts, and when I run ps -ef | grep perl it shows nothing although the scripts are working properly.
When I use pkill -f (name_of_script) the perl process stopped however they are not shown at all.
Note that yesterday I deleted a user ( X ) which was affected to folder /home/scripts. What do you think the problem is from?
The reason for not showing the process in ps -ef might be due to the process being run as a background process. In that case, the process won't be associated with the terminal where you started it from and thus won't be shown in the output of ps -ef. To see all processes running on the system, including background processes, you can use ps aux instead.
I am writing a bash script and I need to kill any browser running at the time of script execution. For that I want the process id of every browser running in the background. I tried all the following, but nothing worked. See this
pidof chromium
pidof chromium-browser
pgrep chromium-browser
ps -A | grep chromium-browser
ps -aux | grep chromium-browser | grep pid
However, See this . It worked for firefox browser. Can Anyone figure out If it's something wrong with command or Chromium-browser itself. Also Can anyone tell any other method to get the process id. I shall try that out by the time.
You can try the following piece of script to list all pids of processes containing chromium-browser in their command name :
ps -aux | grep chromium-browser | tr -s ' ' | cut -d ' ' -f 2
Your other commands didn't work because the process running for chromium-browser is /usr/lib/chromium-browser/chromium-browser (at least for me on xubuntu). You can check the real process by typing ps -aux.
Note: weirdly enough, pgrep chromium-browser doesn't return anything, but pgrep chromium and pgrep chromium-browse work just fine.
pgrep -f chromium-browser is also good
Have similar issue. The reason for this is that executable file named chrome. (I'm using chromium via snap on Ubuntu 18.04)
/snap/chromium/861/usr/lib/chromium-browser/chrome --type=renderer --field-trial-handle=17044127674507841828,2715256006050366173,131072 --lang=en-US --extension-process --enable-auto-reload --num-raster-threads=4 --enable-main-frame-before-activation --service-request-channel-token=10676003778996199464 --renderer-client-id=7 --no-v8-untrusted-code-mitigations --shared-files=v8_context_snapshot_data:100,v8_natives_data:101
So, use chrome for you query.
Or if you'd like to use chromium-browser you need to use additional match options, like pgrep -f.
I'm working on MINI2440 and building a custom OS for it using buildroot, but for testing purpose I'm using OS downloaded from official website.
So the problem is, I'm using usbpush to push OS images in MINI2440 through USB, but it popups the message when I enter below commond
sudo ./usbpush supervivi-128M 0x30008000
Unable to claim usb interface 1 of device: could not claim interface 0: Device or resource busy
I don't understand one concept that, whenever I assign executable permission to usbpush, it runs automatically in background. It's clearly seen below
ps -ef | grep usb*
silicod+ 2431 2207 0 10:25 pts/10 00:00:00 grep --color=auto usbpush
I tried to kill using
sudo kill -9 2431
But it creates new pid and again run itsellf in background. I tried googling but nothing works for me.
=============================================================
Well, I got my solution. I don't know what is the problem with my usbpush tool, but I downloaded another tool and it works very well. Here is the link to that tool , may it help someone
Friendly_ARM_Mini2440_USBPUSH
Cheers....!
lovely ;-)
well I guess it is actually not running..
ps -ef will give you details about all running processes
grep usb* - (loose the *) will find any lines containing usb
the way unix/linux does it is that grep gets started first and then the "|" connects output of ps -ef to grep's input
so what you are finding is the grep command itself
what you want is ps -ef | grep -v grep | grep usb - this will work unless your "usb" command is something like grepusb or usbgrep or the line contains grep..
What is the command to display currently running processes and the option to display PPID's?
I thought that it might be:
jobs -p
jobs -pl
Neither worked though. Any hints?
ps -ef will display all processes and include PPIDs.
it really depends on what you're after
you usually use
top
to see how processes consume system resources
however, if you just want to see some process pid, and know some word from the command that used to run it, try:
ps -ef | grep java
there are other (many) commands and tools, it really depends on the reason you look for the process
for getting one using your username: top -u username idk how to do it with ps but that would be nice to know.
How would I track the CPU and Ram usage for a process that may run, stop, and then re-run with a different PID?
I am looking to track this information for all processes on a Linux server but the problem is when the process stops and restarts, it will have a different PID and I am not sure how to identify it as the same process.
What you're looking for here is called "process accounting".
http://tldp.org/HOWTO/Process-Accounting/
If you know the command of the process, just pipe it to a grep like this:
ps ux | grep yourcommandgoeshere
You can setup a crontab to record output of commands like
top -b -n1 | grep
ps ux | grep
Alternatively, you can use sealion service. By simply installing agent and configuring it according to your needs in simple steps, you can see output of the executed commands online.
Hope it helps...