神秘脚本

#!/bin/bash
ip=$(ip a s ens33  grep -Eo([0-9](1,3)\.)(3)[0-9](1,3) head -1)
echo $ip

groupadd app
if [ `echo $ip | grep 3` ];then
    for i in `seq 100`
    do
        if (( $i < 10 ));then
            useradd -g app app_0$i
        else
            useradd -g app app_$i
        fi
    done
else
    date
fi

grep -v nologin /etc/passwd | cut -d: -f1

yum install nginx -y
systemctl start nginx