安装nmap:
yum install nmap -y
nmap 127.0.0.1
脚本
vim apache_is_start.sh
chmod 755 apache_is_start.sh
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#!/bin/bash # 判断apache是否启动 # Author:James 2016-10-14 # apache所在机器的IP(默认apache端口为80) ipport=127.0.0.1 # 获取apache是否启动状态(通过-w全量匹配tcp的80端口) isopen=$(nmap $ipport| grep -w 80/tcp | grep http | awk '{print $2}'
)
if [ "$isopen" == "open" ]
then
echo "$(date) httpd is ok!" >> /tmp/apache .log
else
# 启动apache
/etc/rc .d /init .d /httpd start &> /dev/null
echo "$(date) restart httpd!" >> /tmp/apache-err .log
fi |