Linux 检查应用不在现就重启

#!/bin/bash
count=`ps axu | grep kafka_2.11-1.0.0|grep -v grep|wc -l`
echo "process count => "$count
if [ "$count" != 0 ];then
        echo "kafka is running "
else
        echo "kafka not running"
        #启动 kafka
        echo "开始启动 zookeeper...."
        sh /home/sol/kafka_2.11-1.0.0/bin/zookeeper-server-start.sh -daemon /home/sol/kafka_2.11-1.0.0/config/zookeeper.properties
        sleep 10; 
        echo "开始启动 kafka...."
        sh /home/sol/kafka_2.11-1.0.0/bin/kafka-server-start.sh -daemon /home/sol/kafka_2.11-1.0.0/config/server.properties
        echo "kafka 启动成功"
fi
#crontab -e
#*/5 * * * * /home/sol/startkafka.sh > /tmp/startkafka.log 2>&1 
#startkafka.sh 不能放在 kafka_2.11-1.0.0 里面，否则 grep kafka_2.11-1.0.0 的count 会有数量
#grep kafka_2.11-1.0.0 最好不要写 grep kafka ，防止 count 有值