How to kill user session

[Adam]

Hi all,

Normally in order to kill user session, I'll use the following command in Linux OS.

Code: [Select]

sudo pkill -9 -u username
Unfortunately, -u is an invalid option in Core.

Code: [Select]

tc@box:~$ pkill -9 -u userabc
-9: invalid option -- 'u'
Busytc v1.24.2 (2016-05-16 13:46:43 UTC) multi-call binary.

Usage: pkill [-l|-SIGNAL] [-fnovx] [-s SID|-P PPID|PATTERN]

Send a signal to process(es) selected by regex PATTERN

        -l      List all signals
        -f      Match against entire command line
        -n      Signal the newest process only
        -o      Signal the oldest process only
        -v      Negate the match
        -x      Match whole name (not substring)
        -s      Match session ID (0 for current)
        -P      Match parent process ID
tc@box:~$
Then, I use -x instead of -u, but it doesn't work too. The user's session is still there. Please advise.

[Rich]

Hi Adam
It looks like you are using the busybox version. Try one of the  procps  extensions.