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I'm working with Amazon's DynamoDB and I can't figure out how to programmatically kill the process reliably by name or PID.

I need to restart it since I'm holding all data in memory and I can delete the entire thing by just easily restarting the process. Problem is I can't figure out how to kill it as easily as starting it.

ps -ax | grep "Dynamo" returns 19355 ttys001 0:28.31 /usr/bin/java -Djava.library.path=./DynamoDBLocal_lib -jar /Users/user/workspace/lib/DynamoDBLocal.jar -sharedDb -port 8000 -inMemory

But when I try killall DynamoDBLocal.jar I receive No matching processes belonging to you were found and the PID changes every time it's started up.

How can I programmatically find the PID to send to kill -9 PID or properly killall by name?

EDIT: Finished! Here's my work to share with others:

alias start_dynamo='java -Djava.library.path=./DynamoDBLocal_lib -jar /Users/user/workspace/lib/DynamoDBLocal.jar -sharedDb -port 8000 -inMemory &'

alias end_dynamo="kill `ps -ax | grep Dynamo | grep -v grep | awk '{print $1}'`"

alias restart_dynamo='end_dynamo; start_dynamo'
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kill `ps -ax |grep Dynamo |awk '{print $1}'` 

should do it. note, this will kill any proc that matches Dynamo

  • this works great but do you know how to convert it into an alias? the escaping of special characters is not trivial unfortunately. – anon58192932 Mar 22 '17 at 21:26
  • I've successfully adopted your command @skarface. Added grep -v grep to ignore the grep command and attempted to escape the command correctly to use in an alias. I get some lengthy bash noise but it's not the end of the world. Would like to remove it if possible but I'm accepting your answer regardless since it worked. – anon58192932 Mar 22 '17 at 21:37
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    Try wrapping the {print $1} in single quotes rather than double quotes to avoid shell interpolation of the $1 – skarface Mar 23 '17 at 16:18
  • hey that worked! thanks skarface!! i swapped my single quotes in the alias for double quotes and used single quotes around '{print $1}'. i've edited my answer with the updated aliases. thanks again. – anon58192932 Mar 23 '17 at 17:47
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    quoting for the shell has always been .... enjoyable :) – skarface Mar 23 '17 at 20:10

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