leader

leader

#!/bin/bash

if [ "$#" -ne 2 ]
then
  echo "Usage: leader portnumber command"
  exit 1
fi

first_run=1
while :
do
    if [[ `lsof -i :$1` ]]
    then
      if [[ $first_run == 1 ]]
      then
        echo 'port already in use. I assume it is already running...'
        first_run=0
      fi
    else
      shift
      echo $@
      exec "$@"
    fi
    sleep 1
done
echo "done"