`mkfs` command is used to make file system of certain type on a storage. It It does formatting of hard disks and other storages.
General command :
mkfs [options] device_name
[ -t ] :For file system types
[ -V ] :For verbose info of proocess
Now a days above command is less used for formatting. `mkfs. ` filesystem specific commands are used for formatting.
ex : mkfs.ext4, mkfs.ntfs etc instead of mkfs.