linux tree command Centos 是默认不带tree 命令的，如果要使用首先要install tree command yum install -y tree 使用tree 显示目录的深度为2级 tree -L 2 . ├── easy-rsa-old-2.3.3 │ ├── configure.ac │ ├── COPYING │ ├── COPYRIGHT.GPL │ ├── distro │ ├── doc │ ├── easy-rsa │ └── Makefile.am ├── frgs.log ├── frp_0.32.1_linux_amd64 │ ├── frgs.log │ ├── frpc │ ├── frpc_full.ini │ ├── frpc.ini │ ├── frps │ ├── frps_full.ini │ ├── frps.ini │ ├── frps.……

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[root@localhost ~]# df -H Filesystem Size Used Avail Use% Mounted on devtmpfs 17G 0 17G 0% /dev tmpfs 17G 0 17G 0% /dev/shm tmpfs 17G 9.1M 17G 1% /run tmpfs 17G 0 17G 0% /sys/fs/cgroup /dev/mapper/centos-root 54G 1.4G 53G 3% / /dev/sda2 1.1G 148M 916M 14% /boot /dev/sda1 210M 12M 198M 6% /boot/efi /dev/mapper/centos-home 12T 35M 12T 1% /home tmpfs 3.4G 0 3.4G 0% /run/user/0 分区不够合理 root 下面空间不够用 umount /home lvreduce -L 5T /dev/mapper/centos-home lvextend -L +5T /dev/mapper/centos-root xfs_growfs /dev/mapper/centos-root mkfs.……

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