All Questions
11
questions
-4
votes
1
answer
409
views
ps command: how does the '-q' option work?
According with the ps command, for the -q option
Through the man is indicated:
-q pidlist
Select by PID (quick mode). This selects the processes whose process ID numbers appear
in ...
- 1,786
0
votes
1
answer
705
views
ps command: how show the complete command with options, pipes and redirection? (or all together)
About the ps command, consider if for simplicity:
in tty3 is executed the yes command
in tty4 is executed the yes > /dev/null command
through ps I need to show in the report the complete command ...
- 1,786
-1
votes
1
answer
691
views
ps command: how does the 'r' option work? How should be used?
About the ps command for the r option
According with man ps it indicates
r Restrict the selection to only running processes.
And according with ps --help a it indicates
r only ...
- 1,786
0
votes
0
answers
35
views
ps command: Practical difference between the -p and -q options [duplicate]
According with man ps exists:
-p pidlist
Select by PID.
This selects the processes whose process ID numbers appear in pidlist.
Identical to p and --pid.
-q pidlist
Select by PID ...
- 1,786
1
vote
1
answer
62
views
ps command: strange behavior with 'O' option, extra column/header does not appear as expected
About the ps command - to add one/many extra column/header with the default headers according with the option(s) used with the ps command - it through O the option.
Intro
If ps x is executed the ...
- 1,786
4
votes
1
answer
3k
views
ps command: how to know all the headers with their respective descriptions?
Through the following valuable tutorial:
Ps Command in Linux (List Processes)
If the ps -ef command is executed then the output has the following header:
UID PID PPID C STIME TTY ...
- 1,786
0
votes
0
answers
710
views
What does '-x' mean in the context of the 'ps' command?
If is executed ps x (observe there is no -) then the output is as follows:
PID TTY STAT TIME COMMAND
2489 ? Ss 0:00 /lib/systemd/systemd --user
2490 ? S 0:00 (sd-pam)
...
- 1,786
0
votes
1
answer
628
views
ps command: How generate the report of processes but according with only either tty or pts?
Through the ps --help all command about the option(s) related with tty exists the following:
-a all with tty, except session leaders
a all with tty, including ...
- 1,786
4
votes
2
answers
457
views
What does '-P' mean in the context of the 'ps' command?
If is executed ps -p 3384 3395 (observe -p is lowercase) then the output is as follows:
PID TTY STAT TIME COMMAND
3384 tty6 S+ 0:00 man ls
3395 tty6 S+ 0:00 pager
Until ...
- 1,786
3
votes
1
answer
2k
views
ps: error: conflicting format options
$ ps -l -o ruid,euid,rgid,egid,sess -p $$
error: conflicting format options
Usage:
ps [options]
Try 'ps --help <simple|list|output|threads|misc|all>'
or 'ps --help <s|l|o|t|m|a>'
...
- 103k
1
vote
1
answer
3k
views
ps: output modifiers vs output format control
In the manpage of ps
-j Jobs format.
-f Do full-format listing.
-o format
User-defined format.
$ ps -j -o ppid,sid
error: can not use output modifiers with user-defined output
$ ps -f -o ...
- 103k