Name of Process

[Trevor]

If I know the PID of a process, I can retrieve the name of the process, using the following command:

$  ps  -p  <PID>  -o  comm=

where
-   <PID> is the process ID/number
-   comm=    a format specifier, which essentially refers to the command (i.e. name of the process)

Another crude way of achieving this same output is using the following construct:

$  top  -b  -n1  -p <PID>  |  tail -1  |  awk '{ print $NF}'

Note:  I'll leave it to you to peruse the man page of the top command to see what the -b and -n options are all about.  I don't want to leave some fun for you

Got any other methods to retrieve the name of the process, when the PID is known?

[Blue_bird]

Nice information..!

Thanks for sharing..!!

[Blue_bird]

the other methods are:

ps -fp <PID> and ls -l /proc/<PID>/exe

Thanks

[Trevor]

Very nice addition to the methods that will achieve this!