神秘脚本

 1 #!/bin/bash
 2 ip=$(ip a s ens33  grep -Eo([0-9](1,3)\.)(3)[0-9](1,3) head -1)
 3 echo $ip
 4 
 5 groupadd app
 6 if [ `echo $ip | grep 3` ];then
 7     for i in `seq 100`
 8     do
 9         if (( $i < 10 ));then
10             useradd -g app app_0$i
11         else
12             useradd -g app app_$i
13         fi
14     done
15 else
16     date
17 fi
18 
19 grep -v nologin /etc/passwd | cut -d: -f1
20 
21 yum install nginx -y
22 systemctl start nginx