# top : top command displays processor activity of your Linux box and also displays tasks managed by kernel in real-time.
Keys for more options with “TOP” Command
Command
|
Specification
|
Description
|
Shift+O
|
Sort
|
To Sort
field via field letter, for example press ‘a‘ letter to
sort process with Process ID. Type any key to return to main top window. |
u
|
Filter with
user
|
Use top
command with ‘u‘ option will display specific User
process details. Ex : # top -u tecmint
|
z
|
Color window
|
Press ‘z‘ option in running top command will display running process
in color which may help you to identified running process easily
|
c
|
Path
|
Press ‘c‘ option in running top command, it will display absolute path
of running process.
|
d
|
Refresh time
|
By default screen refresh interval is 3.0 seconds, same can be change
pressing ‘d‘ option in running top command and change it as desired
as shown below.
|
k
|
kill
|
You can kill a process after finding PID of process by pressing ‘k‘
option in running top command without exiting from top window
as shown below.
|
Shift+P
|
CPU
|
To sort
processes as per CPU utilization. See screenshot below
|
r
|
Priority
|
You can
use ‘r‘
option to change the priority of the process also
called Renice. |
Shift+W
|
Save to file
|
To save the running top command results under /root/.toprc.
|
h
|
Help
|
Press ‘h‘
option to obtain the top command help.
|
q
|
quit
|
Top output keep refreshing until you press ‘q‘. With below command
top command will automatically exit after 10 number of repetition.
|
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