Questions tagged [process]

An instance of a running computer program.

767 questions
255
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13 answers

Environment variables of a running process on Unix?

I need to troubleshoot some problems related to environment variables on a Unix system. On Windows, I can use a tool such as ProcessExplorer to select particular a process and view values of each environment variable. How can I accomplish the same…
Gant
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153
votes
6 answers

Show full process name in top

I'm running a Rails stack on Ubuntu. When I call 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. But when I call top , the same process shows up…
Ben K.
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148
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9 answers

Keeping a linux process running after I logout

I'm connecting to a Linux machine through SSH, and I'm trying to run a heavy bash script that makes filesystem operations. It's expected to keep running for hours, but I cannot leave the SSH session open because of internet connections issues I…
doc_id
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135
votes
8 answers

How to get pid of just started process

I want to start process (eg. myCommand) and get its pid (to allow to kill it later). I tried ps and filter by name, but I can not distinguish process by names myCommand ps ux | awk '/<myCommand>/ {print $2}' Because processes names are not unique. I…
rafalmag
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94
votes
7 answers

How to sort ps output by process start time?

Is there a way to sort ps output by process start time, so newest are either at the top or bottom ? On Linux ? On SysV5 ? On Mac ?
Dean Smith
  • 1,300
93
votes
7 answers

How do you free up a port being held open by dead process?

A colleague of mine recently ran into a problem where a process that had supposedly died was still bound to a network port, preventing other processes from binding to that port. Specifically, netstat -a -b was reporting that a process named System…
Adam Rosenfield
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89
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9 answers

Dump a linux process's memory to file

Is it possible to dump the current memory allocated for a process (by PID) to a file? Or read it somehow?
Fragsworth
  • 1,271
63
votes
8 answers

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 bin/django celeryd -l INFO 51510 ttys005 0:01.89…
Steve Bennett
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53
votes
6 answers

Linux - How do I see when a process started?

How can I see when a process started, assuming I know the pid. (On Linux)
Amandasaurus
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53
votes
8 answers

How can I identify which processes are generating UDP traffic on Linux?

My machine is continously making udp dns traffic request. what i need to know is the PID of the process generating this traffic. The normal way in TCP connection is to use netstat/lsof and get the process associated at the pid. Is UDP the connection…
boos
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48
votes
34 answers

How are you documenting your work, processes and environment?

Are you using a wiki format? If so, which product? (MediaWiki, Confluence, Sharepoint etc.) Have you create a knowledge base? (Problem/solution-oriented short documents.) What challenges do you find with creating documentation that works, so you…
user1804
45
votes
10 answers

How to get pgrep to display full process info

Is there any way to get pgrep to give me all the info about each process that ps does? I know I can pipe ps through grep but that's a lot of typing and it also gives me the grep process itself which I don't want.
JoelFan
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40
votes
7 answers

If I launch a background process and then log out, will it continue to run?

Asking this after a prolonged discussion with a coworker, I'd really like a clarification here. I launch a background process, either by appending " & " to the command line or by stopping it with CTRL-Z and resuming it in background with " bg ".…
Massimo
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39
votes
5 answers

Set max file limit on a running process

I have a long running process that is eventually going to hit the max open file limit. I know how to change that after it fails, but is there a way to change that for the running process, from the command line?
kāgii
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36
votes
3 answers

How to find out cgroup of a particular process?

Is there any method to get cgroup of process? The only one package that I know ( cgroup-bin ), just provide some manipulations with cgroups and allow to change cgroup of process/list of processes, but no capabilities to know information about cgroup…
zerospiel
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