How to quickly kill java processes in bash?

Question

On a linux box, I have at most 3 java jars files running. How do I quickly kill all 3 with one command? Usually I would: ps ex - get the processes running then find the process ids then do: kill -9 #### #### #### Any way to shorten this process? My eyes hurts from squinting to find the process ids. My script does the following: ``` nohup ./start-gossip & nohup ./start & nohup ./start-admin & ``` Is there a way to get the process ids of each without looking it up?

Accepted Answer

You can save the PIDs when you start the processes so you can use them later:

```
nohup ./start-gossip &
START_GOSSIP_PID=$!

nohup ./start &
START_PID=$!

nohup ./start-admin &
START_ADMIN_PID=$!

...

kill -9 $START_GOSSIP_PID
kill -9 $START_PID
kill -9 $START_ADMIN_PID
```

This has the advantage (over `pkill`) of not killing off any other processes that coincidentally have similar names. If you don't want to perform the kill operation from the script itself, but just want to have the PIDs handy, write them to a file (from the script):

```
echo $START_GOSSIP_PID > /some/path/start_gossip.pid
```

Or even just do this when you launch the process, rather than saving the PID to a variable:

```
nohup ./start-gossip &
echo $! > /some/path/start_gossip.pid
```

How to quickly kill java processes in bash?

Solution

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