lfs is a linux utility listing your filesystems.
Usage is shown in a graphical way.
Besides traditional columns, the
disk column helps you identify your "disk" (or the mapping standing between your filesystem and the physical device) :
remov: a removable device (such as an USB key)
HDD: a rotational disk
SSD: a solid state storage device
RAM: an in-memory device (such as zram)
LVM: a device mapped to one or several disks using LVM
crypt: a crypted disk
By default, only the "normal" devices, the ones you're usually interested about, are shown, but you can see the other ones with the
All sizes are normally based on the current SI recommendations (1M is one million bytes) but can be changed with
--units binary (then 1M is 1,048,576 bytes).
The default display of lfs is a table, which can be configured with the columns of your choice.
The table can also be exported in CSV.
lfs --json outputs the result as JSON which can be used for your own scripts or programs.
The query syntax lets you specify the filesystems you want: