今天再次完善之前我写的脚本（3月12号发布在此博客上），这个版本我定为2.0版本
之前那个是1.0版本，2.0版本相对于1.0版本增加了三个功能，安装服务中间件，开启服务器中间件，
卸载服务器中间件，增加的脚本代码如下
实验结果如下所示，用httpd服务为例
install service
open service
remove service
实验成功
代码如下所示
#!/bin/bash
# author :trippal
# time:2020/03/12/14:29
# in ShenZhen city ,GuangDong province,China
# read -p "please input your host IPaddress that you want to connect by ssh " p
# ssh $p
ifsucess=$?
while [ $ifsucess -eq 0 ]
do
read -p " what do you want ? pidsearch ? checkcpu ? db-backup? ssh? zabbix-install-test? remove service? install service? test service? open service? or just exit? " p
case "$p" in
"pidsearch")
echo "pidsearch shell is running!"
read -p "请输入要查询的PID: " P
n=`ps -aux| awk '$2~/^'$P'$/{print $11}'|wc -l`
if [ $n -eq 0 ];then
echo "该PID不存在！！"
continue
fi
echo "--------------------------------"
echo "进程PID: $P"
echo "进程命令：`ps -aux| awk '$2~/^'$P'$/{print $11}'`"
echo "进程所属用户: `ps -aux| awk '$2~/^'$P'$/{print $1}'`"
echo "CPU占用率：`ps -aux| awk '$2~/^'$P'$/{print $3}'`%"
echo "内存占用率：`ps -aux| awk '$2~/^'$P'$/{print $4}'`%"
echo "进程开始运行的时刻：`ps -aux| awk '$2~/^'$P'$/{print $9}'`"
echo "进程运行的时间：`ps -aux| awk '$2~/^'$P'$/{print $10}'`"
echo "进程状态：`ps -aux| awk '$2~/^'$P'$/{print $8}'`"
echo "进程虚拟内存：`ps -aux| awk '$2~/^'$P'$/{print $5}'`"
echo "进程共享内存：`ps -aux| awk '$2~/^'$P'$/{print $6}'`"
echo "--------------------------------"
;;
"checkcpu")
echo -e "checkcpu shell is running!\n"
echo "first of all, press the button of Ctrl and c can stop this script"
echo -e "so,let us get the topic:\nnow the usage of cpu is"
dstat | awk '{print ($1+$2)/100}'
;;
"db-backup")
echo "database-backup shell is running"
;;
"exit")
echo "the shell is over,goodbye"
exit
;;
"ssh")
echo "now the service of ssh is running"
read -p "please input your host IPaddress that you want to connect by ssh " p
ssh $p
;;
"install service")
read -p "please input the name of service you want to install:" p
ifsucess=$?
# while [ $ifsucess == 0 ]
# do
echo "Input the ctrl and C button can exit the shell"
yum install $p -y
# ifsucess=$?
# if [ ifsucess == 0 ]
# then
# break
# fi
# done
echo "your service you want to install is sucessful installed!"
;;
"remove service")
read -p " please input the name of service you want to remove:" p
# rpm -qa | grep $p
ifsucess=$?
echo $ifsucess
while [ $ifsucess == 0 ]
do
yum remove $p -y
break
done
echo -e " $p was removed!"
;;
"open service")
read -p "please input the name of service you want to open: " p
if [ $? == 0 ]
then
service $p start
# systemctl start $p.service
systemctl status $p
else
echo "Input fail !please try again "
fi
;;
"zabbix-install-test")
echo "now it is running the test of four requirement of zabbix-install"
if_soft_install()
{
n=`rpm -qa|grep -cw "$1"`
if [ $n -eq 0 ]
then
echo "$1 is not install."
yum install -y $1
else
echo "$1 installed."
echo "the version of $1 is"
echo "-------------------"
$1 -v
echo "-------------------"
fi
}
if_soft_install httpd
if_soft_install nginx
if_soft_install php
if_soft_install mysql
chk_service()
{
p_n=`ps -C "$1" --no-heading |wc -l`
if [ $p_n -eq 0 ]
then
echo "$1 not start."
/etc/init.d/$1 start
else
echo "$1 started."
fi
}
chk_service httpd
chk_service mysqld
chk_service nginx
chk_service php-fpm
;;
esac
done
echo -e "the connection to $p wasnt sucess,please check your network connection status\n"
echo "the running process of shell script is over "