Linux 查看文件系统的几条命令

root@performance:~# df -Th
Filesystem                  Type      Size  Used Avail Use% Mounted on
udev                        devtmpfs   32G     0   32G   0% /dev
tmpfs                       tmpfs     6.3G  5.1M  6.3G   1% /run
/dev/mapper/debian--vg-root ext4      5.5T  707G  4.5T  14% /
tmpfs                       tmpfs      32G   92K   32G   1% /dev/shm
tmpfs                       tmpfs     5.0M     0  5.0M   0% /run/lock
/dev/sda2                   ext2      471M   49M  398M  11% /boot
/dev/sda1                   vfat      511M  3.5M  508M   1% /boot/efi
tmpfs                       tmpfs     6.3G  4.0K  6.3G   1% /run/user/0
overlay                     overlay   5.5T  707G  4.5T  14% /var/lib/docker/overlay2/b156fd20c7539837586987d88a736ea429e8c2e89b99fd1222f0beebc8893f49/merged
overlay                     overlay   5.5T  707G  4.5T  14% /var/lib/docker/overlay2/c56438202f055b9b6cee17fedce50422ecb0fcb952648ac2babd29f0887958d7/merged
root@performance:~#
root@performance:~# lsblk -f
NAME                  FSTYPE      FSVER    LABEL UUID                                   FSAVAIL FSUSE% MOUNTPOINT
sda
├─sda1                vfat        FAT32          3E0C-E133                               507.6M     1% /boot/efi
├─sda2                ext2        1.0            58106e4b-bd0c-4061-978b-3f8109031ec8    397.4M    10% /boot
└─sda3                LVM2_member LVM2 001       AFWDek-zkrr-T14o-wZvx-02po-dul4-U3yuHU
  ├─debian--vg-root   ext4        1.0            4e55cce3-5c83-45f4-9850-e2f9f4cf574e      4.4T    13% /
  └─debian--vg-swap_1 swap        1              4c2686bb-4c86-46cc-83e8-8482527f1698                  [SWAP]
root@performance:~#
root@performance:~# blkid
/dev/sda1: UUID="3E0C-E133" BLOCK_SIZE="512" TYPE="vfat" PARTUUID="50dab231-be15-425a-a635-34a6c6fb0db0"
/dev/sda2: UUID="58106e4b-bd0c-4061-978b-3f8109031ec8" BLOCK_SIZE="1024" TYPE="ext2" PARTUUID="da00f1e7-ec69-4a39-8855-4cc862a57570"
/dev/sda3: UUID="AFWDek-zkrr-T14o-wZvx-02po-dul4-U3yuHU" TYPE="LVM2_member" PARTUUID="16042c4f-2b86-4d2d-a72f-83fc7afc77a1"
/dev/mapper/debian--vg-root: UUID="4e55cce3-5c83-45f4-9850-e2f9f4cf574e" BLOCK_SIZE="4096" TYPE="ext4"
/dev/mapper/debian--vg-swap_1: UUID="4c2686bb-4c86-46cc-83e8-8482527f1698" TYPE="swap"
root@performance:~#
root@performance:~# cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# systemd generates mount units based on this file, see systemd.mount(5).
# Please run 'systemctl daemon-reload' after making changes here.
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
/dev/mapper/debian--vg-root /               ext4    errors=remount-ro 0       1
# /boot was on /dev/sda2 during installation
UUID=58106e4b-bd0c-4061-978b-3f8109031ec8 /boot           ext2    defaults        0       2
# /boot/efi was on /dev/sda1 during installation
UUID=3E0C-E133  /boot/efi       vfat    umask=0077      0       1
/dev/mapper/debian--vg-swap_1 none            swap    sw              0       0
/dev/sr0        /media/cdrom0   udf,iso9660 user,noauto     0       0
root@performance:~#