A script to run elephantdb as a daemon

run-elephant.sh

#!/bin/sh

if test -s /var/run/hadoop/elephantdb.pid;
then
    OLDPID=`cat /var/run/hadoop/elephantdb.pid`
    echo "Killing old elephant process, pid=$OLDPID"
    kill $OLDPID
    rm /var/run/hadoop/elephantdb.pid
fi;
nohup java elephantdb.main /elephant/global-conf.clj /usr/local/hadoop/conf/elephantdb-local-conf.clj "`date`" > /var/log/hadoop/elephantdb.log &

echo $! > /var/run/hadoop/elephantdb.pid
echo "Started elephantdb, pid=$!"