Weather: cloudy to overcast !
一、需求:
咱們使用的雲主機,購買一塊雲盤後,默認並非掛載狀態的,用shell寫一個腳本,只要把盤符和掛載點以參數的形式提供給腳本,該腳本就能夠自動格式化、掛載。
要求:shell
[aming@Dasoncheng ~]$ cat a.sh #!/bin/bash echo "Useage $0 panfu guazaidian for example : $0 /dev/sdf /data" if [ $# -ne 2 ]; then exit fi if [ ! -b $1 ]; then echo "Plese input a valid device !" exit 1 fi mkfs -t ext4 $1 if [ ! -d $2 ]; then mkdir -p $2 fi n=`grep "$2" /etc/fstab |wc -c` if [ $n -eq 0 ]; then echo "$1 $2 ext4 defaults 0 0" >> /etc/fstab mount -a else mount $1 $2 echo "The $2 exist in /etc/fstab , plese try again !" fi
[aming@Dasoncheng ~]$ mount |grep sdb /dev/sdb on /mnt type ext4 (rw,relatime,data=ordered)
二、需求:
寫一個shell腳本,把192.168.0.0/24網段在線的ip列出來。
思路:for循環,0.1-0.254依次去ping,能通說明在線。bash
[aming@Dasoncheng ~]$ cat b.sh #!/bin/bash ip=192.168.60. for i in `seq 1 20` ; do ping -c 2 $ip$i &>/dev/null if [ $? == 0 ]; then echo "The $ip$i is online;" fi done
一、code
#!/bin/bash echo "Useage $0 盤符 掛載點, 如: $0 /dev/xvdb /data" if [ $# -ne 2 ] then exit fi if [ ! -b $1 ] then echo "你提供的盤符不正確,請檢查後再操做" exit 1 fi mkfs -t ext4 $1 if [ ! -d $2 ] ;then mkdir -p $2 fi n=`egrep " $2 " /etc/fstab|wc -l` if [ $n -eq 0 ] then echo "$1 $2 ext4 defaults 0 0" >> /etc/fstab mount -a else mount $1 $2 echo "配置文件/etc/fstab中已經存在掛載點$2,請檢查一下." fi
二、ip
#!/bin/bash ips="192.168.1." for i in `seq 1 254` do ping -c 2 $ips$i >/dev/null 2>/dev/null if [ $? == 0 ] then echo "echo $ips$i is online" else echo "echo $ips$i is not online" fi done