centos建议用BT下载，速度快,CentOS 7.9 安装包镜像下载地址：
http://mirrors.neusoft.edu.cn/centos/7.9.2009/isos/x86_64/
| cd /var | cd .. ll | cp -r /data/cloud-repos /var/www/html | |
| yum clean all | yum makecache | systemctl status network.service | |
| use mysql | rm -rf /data | vi ssh-password-free.sh | |
| docker ps -a | cp -r /data/* /home | docker load < mysql-8.0.28.tar | |
| docker images | cp -r /home/* /data | docker exec -it mysql /bin/bash | |
| umount -l /data | mount /dev/sda1 /data/ | docker stop postgresql | |
| du -sh * | vim /etc/fstab 开机自动挂载UUID | docker restart postgresql | |
| mkdir data | cd /etc/sysconfig/network-scripts/ | hostnamectl set-hostname web.596.com | |
| lsblk | cat bonding_masters | vim /etc/sysconfig/network-scripts/ifcfg-eth0 | |
| reboot | cd /sys/class/net | chmod +x *.sh ./clearLog.sh | |
| ip -a | systemctl restart network.service | ceph osd pool set default.rgw.buckets.data min_size 1 | |
| sudo | service restart network | mount /sdb/sdb2/centos-home /home | |
| ifconfig | firewall-cmd --state | mount /dev/mapper/centos-home /home | |
| ifdown bond0 | systemctl stop firewalld | echo -bond0 > bonding_masters | |
| cd backup/ | systemctl disable firewalld.service | /bin/systemctl start network.service | |
| history | docker exec -it ceph-rgw bash | ||
| mkdir tools | growpart /dev/sda 1 扩容后挂载 | ||
| /properties | resize2fs /dev/sda1 | ||
| sys_database | cat /dev/null > xxx-json.log | ||
| bash clear.sh | umount -l /home | ||
| umount /home | mount /dev/sda1 /data | ||
| growpart | |||
| df -h | |||
| python --version | |||
| hosts | |||
| su | |||
| getenforce | |||
| setenforce 0 | |||
| esc :wq! | |||
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