Several months ago I have shortly described how to close non-responsive ssh session, which comes handy at times. Today I will describe how to close every active ssh session by inspecting existing pseudoterminals.
The idea is quite simple as it can be described just in several simple steps.
| List process IDs using pseudoterminals | |
| lsof -w -t +d /dev/pts/ | |
| Sort generated list | |
| sort | |
| Remove duplicated entries | |
| uniq | |
| List parent process IDs | |
| xargs ps -oppid= -p | |
| Extend list by process name and owner | |
| xargs ps -ocomm=,pid=,user= -p | |
| Filter sshd processes | |
| awk '($1 == "sshd") {print $2}' | |
| Terminate filtered processes | |
| xargs kill | |
Use following command to close every active ssh session.
# lsof -w -t +d /dev/pts/ | sort | uniq | \
xargs ps -oppid= -p | \
xargs ps -ocomm=,pid=,user= -p | \
awk '($1 == "sshd") {print $2}' | \
xargs killUse following command to close every active ssh session owned by specified username.
# lsof -w -t +d /dev/pts/ | sort | uniq | \
xargs ps -oppid= -p | \
xargs ps -ocomm=,pid=,user= -p | \
awk '($1 == "sshd"&& $3 == "USERNAME") {print $2}' | \
xargs killIt is quite simple solution that can be used to identify and close parent processes based on defined criteria.