Kill Multiple Instance of same program in Linux
When you have multiple instance of same program running in background, and you want to kill them all, Use the below command after replacing processName with your program name.
ps -A | grep processName | awk '{print $1}' | xargs -L1 kill -9
Basics, the pipe symbol “|”, which is used as connector between two commands, where output of first command is passed as input for second program.
Let us breakdown each command passed though multiple pipes.
Step 1: Get list of all processes running in the system in rows.
ps -A
Step 2: Filter the process rows we want to kill.
grep processName
Step 3: Pick the first-column-data (process ID) of filtered process rows.
awk '{print $1}'
Step 4: Kill all filtered processes using there process-ID.
xargs -L1 kill -9