runner

#!/bin/bash
case $1 in
"co")
  javac $2
;;
"cf")
  filename=$2
  echo $filename to ${filename//.java/.class} && \
  javac $2 && \
  jar cfe ${filename//.java/.jar} ${filename//.java/} ${filename//.java/.class}
;;
"run")
  filename=$2
  java -jar $filename
;;
"cleanup")
  find . -name "*.class" | xargs rm
;;
*)
  echo Unexptected command.
;;
esac