To show the mounted file systems on a FreeBSD system, you can use the mount command without any arguments. This will display a list of all the file systems that are currently mounted on the system.
For example:
$ mount /dev/da0s1a on / (ufs, local, read-only) devfs on /dev (devfs, local, multilabel) /dev/md0 on /var (ufs, local, read-only)
The output shows the device name, the mount point, the file system type, and some other information about the mounted file system.
You can also use the df command to show the mounted file systems. The df command displays information about the available and used disk space on the file systems.
For example:
$ df -h Filesystem Size Used Avail Capacity Mounted on /dev/da0s1a 895M 232M 626M 27% / devfs 1.0K 1.0K 0B 100% /dev /dev/md0 90M 18M 72M 20% /var
This will show the file system type, the size, the used space, the available space, and the capacity (percentage of used space) for each mounted file system.