duf
Disk usage and free utility, a better 'df' alternative
...Sort the results according to your needs, with groups & filters devices. duf can conveniently output JSON. Make sure you have a working Go environment (Go 1.12 or higher is required). Binaries for Linux, FreeBSD, OpenBSD, macOS, Windows. You can simply start duf without any command-line arguments. If you supply arguments, duf will only list specific devices & mount points. If you want to list everything (including pseudo, duplicate, inaccessible file systems), you can. You can show and hide specific tables. You can also show and hide specific filesystems. ...