report a snapshot of the current processes. Useful when trying to determine the status of the running process in a specific moment.
Questions tagged [ps]
114 questions
279
votes
1 answer
What do the STAT column values in ps mean?
In the STAT column of ps there are a load of letters that don't really make much sense. What do they mean?
Here's an example of ps aux | head:
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 27176 …
Oli
- 299,380
48
votes
4 answers
How to check my niceness?
Is there any way to check my nice lvl? I did try with ps, but for some reason the output does not show the column NI which is meant to show the lvl priority if I'm not wrong.
ps -fl -c
F S UID PID PPID CLS PRI ADDR SZ WCHAN STIME TTY …
sebas
- 600
36
votes
3 answers
ps aux for long charactered usernames shows a plus sign
I'm trying to get an output from ps aux so that it looks like:
giovanni 28331 4381 0 15:43 ? 00:00:00 sshd: giovanni@pts/1
giovanni 28346 28331 0 15:43 pts/1 00:00:00 -bash
giovanni 28646 28346 0 15:43 pts/1 00:00:00…
Giovanni Mounir
- 463
26
votes
3 answers
How to prevent ps from truncating the process name
Following command outputs only first 25 characters of the process name (cmd) on the screen. How do I get it to display the full process name?
ps -eo pid,cmd,etime
hvs
- 363
23
votes
3 answers
Output only the column under COMMAND of `ps` command in terminal
I know that we can easily find the following:
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
of all the running processes by using the command:
sudo ps aux
My, question is that, is it possible to show the output of only…
Raphael
- 8,135
20
votes
5 answers
Find children of the process
is there any way to know, who are children of the specific process ? for example those children which their parent ID is foo ?
Mohammad Reza Rezwani
- 10,706
18
votes
1 answer
How to find the running network services and the port and user
I want to find a list of all network services running on my system, including details of the port and services and the users.
I know that I need to use netstat, ps and fuser. but I don't know how to write the command.
Do I need to write a shell…
Mohammad Nikkhou
- 217
17
votes
1 answer
What does "ps -ef|grep processname" mean?
I want to know exactly what this particular command
ps -ef|grep processname
means and how it works. I know that this should be associated with processname which we want to search for, but I don't get the prefix part; what do -ef and |(pipe) do and…
PatilSaheb
- 183
15
votes
4 answers
Why the PID values are not continuous?
If we type ps -ef then we get a list of processes. Why are the PID numbers not continuous?
Vasu Dev Garg
- 193
14
votes
2 answers
List only processes that are in suspended mode
to list processes that are running in the background, one can type:
ps -ef or ps -aux
but how to list processes that are suspended, let's say I had some process in the foreground and just suspended (either with bg or Ctrl+z)
how to I get to…
Algina
- 310
14
votes
1 answer
what is the meaning of ax in ps ax
I know when you type sudo ps ax, that list all of the running process on the system. But want to know what is ax? what ax stand for? Is that abbreviation ?
Mohammad Reza Rezwani
- 10,706
12
votes
2 answers
Which to use of ps ef or ps -ef?
I see there is a difference in output between ps ef and ps -ef. What is that difference, are both commands correct or which is preferred?
Niklas Rosencrantz
- 3,324
12
votes
2 answers
Running a single executable with sudo adds two processes in process list
I wrote a program that captures the packets from the network interface. As it listens the network adapter, I need to run it with sudo. The question is, why when I run it, does it add two processes to the processes list?
Note : lwdpi is my…
Ebrahim Ghasemi
- 197
12
votes
1 answer
Difference between ps -aux and ps aux
What is the difference between ps -aux and ps aux? I wonder it's more than a mere matter of syntax and "portability". Which one is better to use in Ubuntu?
Despite there are some similar question, I'm interested in this specific difference.
floatingpurr
- 627
11
votes
2 answers
Values of WCHAN in ps
What does the WCHAN (waiting channel) mean exactly? what can be its value and what those values represents? I tried to find them but got nothing.
Chirag Acharya
- 111
- 1
- 1
- 4