How to Determine the Type of a File System

Use the grep command to find a file system's type in the /etc/vfstab file:

$ grep /tmp /etc/vfstab
swap       -          /tmp     tmpfs   -     yes    -
$

Information for the mount point is displayed.

If vfstab does not have an entry for a file system, use one of the following procedures to determine the file system's type.