exportfs stands for export file system, which exports file system to a remote server which can mount, and access it like a local file system. You can also unexport the directories using exportfs command.

What is an NFS export?

An NFS server must export a file or directory, after which an NFS client may mount that file or directory. More details about these concepts are included in this section. NFS directory exports. NFS directory mounts. An NFS client can mount a directory that has been exported by an NFS server.

What is ETC export Linux?

The /etc/exports file controls which file systems are exported to remote hosts and specifies options. Blank lines are ignored, comments can be made by starting a line with the hash mark ( # ), and long lines can be wrapped with a backslash ( ).