su - root
whoami
pwd
mkdir
touch
rm
cd
pwd
vim
more
cat
chmod
chown
chgrp
netstat
tar -zxvf
tar -vcf
防火墙
firewall-cmd --zone=public --list-ports
firewall-cmd --zone=public --add-port=80/tcp --permanent
firewall-cmd --reload
实例1：从远处复制文件到本地目录
scp root@99.48.210.85:/etc/supervisor/conf.d/cpgrouponservice.conf /etc/supervisor/conf.d/
实例2：上传本地文件到远程机器指定目录
scp /etc/supervisor/conf.d/cpgrouponservice.conf root@99.48.210.85:/etc/supervisor/conf.d/