This simple fhost usage session is enough to introduce you on this tool:
usage: fhost [-h] [-v] {import,add,export,list,delete} ...
Create, list, and modify local hostnames.
optional arguments:
-h, --help show this help message and exit
-v, --version
subcommands:
valid subcommands
{import,add,export,list,delete}
additional help
add Add new host
delete Delete existing hostname
export Export hosts as a backup
import Import hosts from a backup
list List available hosts
fhost's epilog
Listing available Hosts.
$ fhost list
Listing (4) host(s):
127.0.0.1 -> localhost
127.0.1.1 -> fhost.org
192.168.56.101 -> fhost.org
192.168.56.102 -> subcmd.org
Adding a new Host.
$ sudo fhost add 192.168.56.103 fake-host.com fake-host
fhost list
Listing (5) host(s):
127.0.0.1 -> localhost
127.0.1.1 -> fhost.org
192.168.56.101 -> fhost.org
192.168.56.102 -> subcmd.org
192.168.56.103 -> fake-host.com
Removing a Host.
$ sudo fhost remove fake-host.com
Listing (4) host(s):
127.0.0.1 -> localhost
127.0.1.1 -> fhost.org
192.168.56.101 -> fhost.org
192.168.56.102 -> subcmd.org