for i in {1..10}
do
    echo $i
done


for i in `seq 1 10`
do
    echo $i
done

for i in `seq 10`
do
    echo $i
done

for((i=1;i<=10;i++))
do
    echo $i
done

echo "xxx" >/etc/hostname
hostname -F /etc/hostname


cat /etc/locale.conf
LANG="zh_CN.UTF-8"
LANG="en_US.UTF-8"

yum install -y virt-what
yum install -y net-tools.x86_64


/etc/selinux/config

yum安装
# 安装EPEL源
yum install epel-release 
# 安装python36、pip36
yum install