screen stop all screens code example
Example 1: linux screen kill attached session
screen -X -S SCREENID killExample 2: kill all screens linux
for scr in $(screen -ls | awk '{print $1}'); do screen -S $scr -X kill; donescreen -X -S SCREENID killfor scr in $(screen -ls | awk '{print $1}'); do screen -S $scr -X kill; done