Questions about identifying processes, about listing them, sending signals, killing them, assigning and using process priorities.

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Process pasued but connection not terminated to files in locasystem

I am not sure whether this is the right place or not but as this is a question which needed a solution I am posting here. I have used kill -SIGSTOP 1234 command to pasue a process named as 1234 and ...
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2answers
33 views

shell script to check if a process is up

I want to check if a proces is up: [nyxqa@qckmaccg102 scripts]$ ps -fu nyxqa UID PID PPID C STIME TTY TIME CMD nyxqa 19620 1 0 08:42 ? 00:00:00 ./ArcaDirect ITD ...
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1answer
6 views

Highlighted processes on top

I am running four processes in two computers, a master node and a slave node. I gave the command to spawn these processes, while on screen command. Now, I logged into with ssh, in both computers and I ...
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0answers
44 views

Allowing multiple programmes to access /dev/video0 simultaneously?

I've just recently noticed that video from my webcam does not always work in a programme, so long as something else is accessing it. Let's explain this with some usage examples: I'm running uTox (a ...
21
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2answers
644 views

Process 'niceness' vs. 'priority'

When running top, I can see this (shortened) example output: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 4586 ipc-adm+ 20 0 1303900 605152 92844 S 30,6 29,3 ...
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5answers
942 views

How to kill all processes apart from specific one

On my local server, many java processes are running, and at the same time I am using Eclipse. Now when I need to restart my processes (I start processes through a shell script), before every start I ...
1
vote
1answer
32 views

Unable to launch anything after changing hostname

Since I upgraded to Ubuntu 15.04, I have noticed that whenever I change my hostname by changing it in and with: /etc/hostname /etc/hosts sudo hostname <new-hostname> Immediately after this, ...
2
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2answers
177 views

What are the different htop kill signals?

I have recently started using htop, and I have been needing to kill processes, but when pressing F9 on the process, it has been giving me this list of options, I just chose the one which is selected ...
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0answers
13 views

what is status “ fsnotify_mark_destroy ” in wait channel?

Recently Iam seeing lot of "fsnotify_mark_destroy" as the wchan state for process .May I know more details on this status
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3answers
86 views

How to change niceness of process by name

Java process is killing my computer (Intel i3, 8GB RAM). It takes over whole CPU and system starts to hang. I was trying to change niceness of java processes but i have to control it for all time and ...
0
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1answer
16 views

Not able to see the GRUB after updating with rerular updates…in14.04 [duplicate]

After updating with regular updates of packages of 14.04 .. my system started to boot directly to windows .... how i would be able to get it back
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3answers
99 views

Bash: What to do when control-c won't kill a process, is there a better solution to the on/off button?

The full title of this question is: Bash: What to do when control-c won't kill a process, due to the fact that the bash script contains a loop which calls another process: Is there a better solution ...
2
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1answer
231 views

How to stop automatic freshclam execution

I have the latest version of freshclam and clamav installed, and in the past (when I had Ubuntu 14.10) it has only run freshclam automatically a few times a day, but has not been running all the time. ...
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3answers
3k views

Why can terminal uninstall itself?

How does apt-get remove xterm go through? And after it's been uninstalled, xterm doesn't close and continues to function normally. Is the xterm process cached in RAM whilst it is running?
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2answers
25 views

How do I list all processes owned by my user?

List all process names for my user. I could do it with ps aux | grep username But the output would be like: maythux 18343 0.0 0.1 1070868 34504 ? Sl Jun03 0:07 empathy maythux ...
3
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1answer
80 views

How to start multi-threading multiple processes with one command

I often multi-thread processes from Terminal by running something like: sudo etherape & But I have noticed that I am unable to start multi-threading two processes at the same time by doing ...
0
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1answer
84 views

pkill command with sessionid is not killing entire process tree

I am executing the following command to stop entire process tree(i.e parent and all its child/grand-child processes) : pkill -9 -s {sessionID} To get sessionID I am using following command: ps -o ...
1
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1answer
32 views

Find ports locked to process running in the background

Is it possible to find the ports assigned to the process started on the background? I want to start a process and let it run in the background, like ./run.sh & and then see all the ports this ...
0
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1answer
48 views

How are process id PID assigned on Ubuntu?

I see the pricessid ranging from 800 to arround 6500. So what process or algorithm does Ubuntu use to assign unique pid to the process?
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1answer
41 views

Process can not get more than 30% CPU

I'm running a program that is known to be CPU time consuming, but it can not get more than 30% for me which causes issues and crashes. Does anyone have an idea on maybe some parameters limiting the ...
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0answers
40 views

Can Wine manage Linux programs? (Maximise, Minimise, Restore, End)

I am trying to make some sort of Desktop Environment using a Windows program. However, there's something I was worried about. If I were to use this as a Desktop Environment, I would need to manage all ...
0
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2answers
51 views

Why does ps output show a process even if it is not running?

Why does the ps shows a process even if it is not running. While Firefox is running: $ echo $(ps aux | awk '/firefox/{print $2}') 5964 6041 But when Firefox is not running, I tried to run the same ...
1
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1answer
26 views

Are there processes that can't be stopped?

Are there processes, once suspended (by ctrl-z), can't run correctly after resume (by fg)? What kinds are they? Are there processes that can't be suspended at all? What kinds are they? I just want ...
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4answers
616 views

How do I search for a process by name without using grep?

In order to search for a process you can use ps with grep. For example to search for firefox ps aux | grep firefox How to get the same answer without using grep?
2
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3answers
74 views

process control

Lets say I have a file, and the permissions of that file change.I want to log, report, and even require authentication for all changes to that file (even as root). as in, I do not want this file to ...
2
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0answers
75 views

Is a Beowulf cluster a solution for me?

Background I'm an undergrad working on an scientific experiment. Till now I was pilot testing our one of the program on Ubuntu 12.04 and now I need to deploy it. The PC on which I tested the program ...
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2answers
37 views

How to find disk path of a process

If a process is running how can I find its disk path using command on terminal ? In my case a process synergy is running and I want to locate it on disk ps -ef shows the path of other processes ...
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0answers
17 views

DropbBox suddenly restarted with “Killed” message

I have installed DropBox with: cd ~ && wget -O - "https://www.dropbox.com/download?plat=lnx.x86_64" | tar xzf - And it normally works fine, but today when I was syncing with my online ...
2
votes
5answers
145 views

How to check which processes are still active after a user session has logged out

I am needing to do some debugging work, and as a part of that debugging work I need to know if there are any processes still running after a user session has logged out. And I need to specifically be ...
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0answers
38 views

Trying to execute a process with pkexec asynchronously and get 'Refusing to render service to dead parents'

I'm trying to execute a process as root from my application that runs with regular privileges using pkexec. When I invoke pkexec synchronously everything is fine but when I run it asynchronously with ...
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2answers
453 views

How to kill a single thread from Terminal in Ubuntu?

I'm new to Ubuntu and new here. I need to know this. How do I kill a single thread from Terminal in Ubuntu? I have mozilla opened and it has 45 threads. I want to kill one of it. I've already search ...
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0answers
124 views

Unusual behave - Virus Like

I am facing a very strange behave on my Ubuntu 14.04 LTS box. I have an IPTV system providing cable TV and Internet through a router. My Ubuntu box is connected to the router and provides file serving ...
2
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3answers
1k views

ps -xa | grep node to kill specific process

I am currently using the following command to get a process: ps -xa | grep node Which results in the following: 13611 ? Sl 0:03 /opt/brackets/Brackets-node /opt/brackets/node-core 20713 ...
0
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1answer
160 views

Is ubuntu able to kill a process because of low memory and how to know it

Everything is in the title. I'm running a play framework and a redis process on my ubuntu 2GB RAM VPS but last night the 2 processes suddenly crashed without any log (which is weird because they ...
0
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1answer
74 views

Why is my non-system HDD cannot spin down?

My non-system (/media) HDD unfortunatly wakes up from sleep after around 1-2 min. I tried to investigate which process could request an access to hdd while sleep with the help of thes thread: ...
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1answer
201 views

Is sudo killall -u lightdm safe?

I realized that my server has many processes runned by lightdm: Can i killall processes from lightdm? Is sudo killall -u lightdm safe?
0
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1answer
191 views

Ubuntu is very slow in my Laptop Asus N51VN

My laptop has a 4G ram and 500G hard with the Intel core 2 duo but Ubuntu is very very slow in my laptop I try Ubuntu studio Ubuntu 14.04 Ubuntu 14.10 Ubuntu 15.04 instead Windows operation work ...
3
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1answer
93 views

Process [#] terminated with status [#]

What is "process [number in parentheses] terminated with status 1"? or "with status 99"? I forget exactly where it appeared. Probably in a crash report.
2
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1answer
99 views

Can there be two init processes?

I am new to Operating Systems (specifically Linux) and this is my first question here I want to ask, can there be two process with CMD = init (as given by ps - e command). I had two processes on my ...
0
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1answer
43 views

High uptake of memory in the nano process (root)

In Ubuntu server 14.04 have a high consumption in the process called nano (root), which is consuming too much memory RAM. Why this happens? And as I controlled?, i have a server with 5 gb in ram and ...
1
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1answer
56 views

Switch tasks on active process to new process

What I'm going to explain is really about nginx processes, so maybe it can be done in nginx, or maybe its a Linux feature. In anyway, I hope it's possible. I have an ningx process running, that looks ...
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2answers
148 views

Wait for PID - shown in ps

I am using the command below in a script to wait for a PID and then do something when that process finishes: while ps -p [pid] > /dev/null; do sleep 1; done; [cmd] where [pid] is the PID of the ...
0
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1answer
145 views

Automatically restart a crashed software [duplicate]

I am using "Docky" and it is a software prone to crashes once in a while. Is there a way to keep this software always running even after a crash? I want "Docky" to restart itself if it crashes so i ...
2
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3answers
97 views

Can I somehow pause all processes of an user logged in in background?

I have mainly two accounts on my 14.10 laptop: Mine (admin) and my brother's (restricted). Now when my brother is logged in and runs some applications like firefox with flash player, it consumes ...
0
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0answers
51 views

What in install.sh in Kubuntu 14.04?

My laptop fan is sometimes loud when running Kubuntu 14.04, I guess it is because of one process taking 12-13% of CPU memory. I am new with KDE/Kubuntu. What is that? Should it be running like ...
0
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0answers
6 views

Screen turn off during Restore

I just reinstalled my ubuntu 12.04 and during the back-up restore my screen just turned off but my computer is still working. The hard drive's light is off. I guess its no longer in use. It's has been ...
0
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0answers
38 views

strange process of making a slow network

whether this process, making the connection to be slow. how to eliminate it permanently, I have used comment kill -s 9 [PID]. but reappears help me please. tks PID USER PR NI VIRT RES SHR ...
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1answer
50 views

how to list all processes as sorted names

As far as I know, ps -ewill list all processes in ubuntu. But the results are sorted based on pid. I want the results are based on sorted names. What command should I use ?
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1answer
79 views

See processes which use device

I have this (hopefully) irrational fear someone might hijack my webcam, especially since some of my colleagues started to put some tape around theirs. For some reason I am sometimes not able to ...
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0answers
152 views

“asking all remaining processes to terminate…” problem again with 14.04.1 LTS

I tried install ubuntu 14.04.1 LTS on my laptop. the installation process was a breeze. however, after rebooting at the prompt "reboot to use the system" when installation complete, it stuck at ...