樹莓派檢測ip指令碼
阿新 • • 發佈:2018-11-10
在樹莓派上執行web伺服器,但有時候開機完網路沒有啟動成功,需要重啟networking服務,所以寫了一個指令碼來檢測IP是否為192.168.x.x,如果不是則重啟networking
#!/bin/bash while true do IP="$(ip addr show eth0|grep "inet\b"|awk '{print $2}')" VAL_CHK=$(echo $IP|awk -F"." '{if(($1==191)&&($2==168)&&($3==1)){ printf "T"}else{printf "F";}}') echo $IP echo $VAL_CHK if [ "$VAL_CHK" = "T" ] then echo "IP is available." exit 0 else echo "IP is error!" systemctl stop networking sleep 5 systemctl start networking sleep 5 fi done