nginx 启动脚本

#!/bin/sh

PRG="$0"

while [ -h "$PRG" ]; do

  ls=`ls -ld "$PRG"`

  link=`expr "$ls" : '.*-> \(.*\)$'`

  if expr "$link" : '/.*' > /dev/null; then

    PRG="$link"

  else

    PRG=`dirname "$PRG"`/"$link"

  fi

done

# Get standard environment variables

PRGDIR=`dirname "$PRG"`

[ -z "$APP_HOME" ] && APP_HOME=`cd "$PRGDIR" >/dev/null; pwd`

[ -z "$APP_PID" ] && APP_PID=$APP_HOME/pid

FILE_LIST=`ls  ${APP_HOME}`

JAR_FILE=""

LOG_FILE=""

for FILE in $FILE_LIST

do

if [ "${FILE##*.}" = "jar" ]; then

[ -n "$JAR_FILE" ] && echo "failed, due to  more then one jar...." && exit

JAR_FILE="${APP_HOME}/${FILE}"

LOG_FILE="${FILE%.*}.log"

fi

done

if [ -z $JAR_FILE ]; then

echo "Error : no jar file in $APP_HOME"

exit

fi

if [ -f "$APP_PID" ]; then

PID=`cat $APP_PID`

  rm -rf $APP_PID

  kill -9 $PID

fi

OPTS="-Xmx1024m -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+HeapDumpOnOutOfMemoryError -Xloggc:gc.log"

nohup java $DEBUG -jar $OPTS ${JAR_FILE}  >>$APP_HOME/${LOG_FILE} 2>&1 &

PID=$!

echo $PID > ${APP_PID}

if [ ! -f $APP_HOME/${LOG_FILE} ]; then

echo "begin....." >>$APP_HOME/${LOG_FILE}

fi

tail -fn 400 $APP_HOME/${LOG_FILE}