df example

bash-5.1$ df -T
Filesystem                  Type  1K-blocks      Used Available Use% Mounted on
tmpfs                       tmpfs   1632596      3396   1629200   1% /run
/dev/mapper/ubuntu--vg-root ext4  952742108 494528812 409789976  55% /
tmpfs                       tmpfs   8162976     78392   8084584   1% /dev/shm
tmpfs                       tmpfs      5120         4      5116   1% /run/lock
tmpfs                       tmpfs   8162976         0   8162976   0% /run/qemu

bash-5.1$ df -t ext4
Filesystem                  1K-blocks      Used Available Use% Mounted on
/dev/mapper/ubuntu--vg-root 952742108 494541004 409777784  55% /

bash-5.1$ type df
df is hashed (/usr/bin/df)

bash-5.1$ command df -T
Filesystem                  Type  1K-blocks      Used Available Use% Mounted on
tmpfs                       tmpfs   1632596      2932   1629664   1% /run
/dev/mapper/ubuntu--vg-root ext4  952742108 494588160 409730628  55% /
tmpfs                       tmpfs   8162976     74292   8088684   1% /dev/shm
tmpfs                       tmpfs      5120         4      5116   1% /run/lock
tmpfs                       tmpfs   8162976         0   8162976   0% /run/qemu

bash-5.1$ df --version
df (GNU coreutils) 8.32
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Torbjorn Granlund, David MacKenzie, and Paul Eggert.