1.取磁盘的使用率 大于百分%2 就报警或者把结果输入一个文件里
#!/bin/sh Disk_free=$(df -h|grep /$|awk -F "[% ]+" '{print $(NF-1)}') if [ $Disk_free -ge 3 ] then echo "Disk Is use $Disk_free ERROR" > /opt/disk.txt else echo "Disk Is $Disk_free good" > /opt/disk.txt fi ** 2.负载超过百分之10 则报警 或者发送到文件**
#!/bin/bash while true do Load=$(w|awk 'NR==1'|awk -F, '{print $(NF-2)}'|awk '{print $NF}') if [ ${Load%.*} -ge 1 ];then echo "load is dinger $Load"
fi done
3.用脚本写跳板机jumpserver #!/bin/bash #jumpserver LB02=10.0.0.6 Mysql=10.0.0.52 NFS=10.0.0.7 web01=10.0.0.8 web02=10.0.0.9
caidan () { cat <<o +++++++++++++++++++++++++++++++++++++ \ 1) LB02 \ 2) Mysql \ 3) NFS \ 4) web01 \ 5) web02 \ 6) h +++++++++++++++++++++++++++++++++++++ o } caidan
trap "" HUP INT TSTP
while true do read -p "请输入你要登陆的服务器编号：" num case $num in 1|LB02) ssh root@$LB02 ;; 2|Mysql) ssh root@$Mysql ;; 3|NFS) ssh root@$NFS ;; 4|web01) ssh root@$web01 ;; 5|web02) ssh root@$web02 ;; 6|h) caidan ;; lihongqing) exit 1 ;; esac done
4.启停nginx
#!/bin/sh #nginx_start source /etc/init.d/functions
TE=$1 ST(){ if [ $? -eq 0 ] then action "Nginx $TE" /bin/true else action "Nginx $TE" /bin/false fi }
start(){ /usr/sbin/nginx ST }
stop(){ /usr/sbin/nginx -s stop ST }
restart(){ /usr/sbin/nginx -s stop sleep 5 /usr/sbin/nginx ST }
reload(){ /usr/sbin/nginx -s reload ST } status(){ pro=$(ps axu|grep nginx|grep master|awk '{print $2}') echo "Nginx PID is $pro" port=$(netstat -tnulp|grep -v tcp6|grep nginx|awk '{print $4}') echo "Nginx port is $port" ST } case $1 in start) start ;; stop) stop ;; restart) restart ;; reload) reload ;; status) status ;; *) echo "USAGE $0: Please Input start|stop|restart|reload|status" esac
#########################交互登陆################################# #!/bin/bash
spawn ssh root@10.0.0.52
expect { "yes/no" { send "yes\r"; exp_continue } "password:" { send "123456\r" }; } interact 用：[root@m01 ~]# expect jiaohu.sh 命令登陆
