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Hosts
hosts is a command line program for managing
hosts file entries.
hosts works with existing hosts files and entries, making it easier to add,
remove, comment, and search hosts file entries using simple, memorable
commands.
hosts is designed to be lightweight, easy to use, and contained in a
single, portable script that can be curled into any environment.
Installation
Homebrew
To install with Homebrew:
brew install xwmx/taps/hosts
npm
To install with npm:
npm install --global hosts.sh
bpkg
To install with bpkg:
bpkg install xwmx/hosts
Make
To install with Make, clone this repository, navigate to the clone's root directory, and run:
make install
Manual
To install manually, simply add the hosts script to your $PATH. If
you already have a ~/bin directory, you can use the following command:
curl -L https://raw.github.com/xwmx/hosts/master/hosts -o ~/bin/hosts && chmod +x ~/bin/hosts
A package for Arch users is also available in the AUR.
Tab Completion
Bash and Zsh tab completion is enabled when hosts is installed using
Homebrew, npm, bpkg, or Make. If you are installing hosts manually,
completion can be enabled with a few commands.
Usage
Listing Entries
hosts with no arguments lists the entries in the system's hosts file:
> hosts
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1 localhost
fe80::1%lo0 localhost
hosts called with a string or regular expression will search for entries
that match.
> hosts localhost
127.0.0.1 localhost
::1 localhost
fe80::1%lo0 localhost
> hosts '\d\d\d'
127.0.0.1 localhost
255.255.255.255 broadcasthost
Adding Entries
To add an entry, use hosts add:
> hosts add 127.0.0.1 example.com
Added:
127.0.0.1 example.com
Run hosts or hosts list to see the new entry in the list:
> hosts
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1 localhost
fe80::1%lo0 localhost
127.0.0.1 example.com
Removing Entries
To remove an entry, use hosts remove, which can take an IP
address, domain, or regular expression:
> hosts remove example.com
Removing the following records:
127.0.0.1 example.com
Are you sure you want to proceed? [y/N] y
Removed:
127.0.0.1 example.com
Blocking and Unblocking Domains
hosts provides easy commands for blocking and unblocking domains with IPv4
and IPv6 entries:
> hosts block example.com
Added:
127.0.0.1 example.com
Added:
fe80::1%lo0 example.com
Added:
::1 example.com
> hosts unblock example.com
Removed:
127.0.0.1 example.com
Removed:
fe80::1%lo0 example.com
Removed:
::1 example.com
Enabling / Disabling Entries
Add entries are enabled by default. Disabiling an entry comments it out so it has no effect, but remains in the hosts file ready to be enabled again.
> hosts
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1 localhost
fe80::1%lo0 localhost
127.0.0.1 example.com
> hosts disable example.com
Disabling:
127.0.0.1 example.com
> hosts
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1 localhost
fe80::1%lo0 localhost
Disabled:
---------
127.0.0.1 example.com
> hosts enable example.com
Enabling:
127.0.0.1 example.com
> hosts
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1 localhost
fe80::1%lo0 localhost
127.0.0.1 example.com
Backups
Create backups of your hosts file with hosts backups create:
> hosts backups create
Backed up to /etc/hosts--backup-20200101000000
List your backups with hosts backups. If you have existing hosts file
backups, hosts will include them:
> hosts backups
hosts--backup-20200101000000
hosts.bak
hosts backups compare will open your hosts file with diff:
> hosts backups compare hosts--backup-20200101000000
--- /etc/hosts 2020-01-01 00:00:00.000000000
+++ /etc/hosts--backup-20200101000000 2020-01-01 00:00:00.000000000
@@ -8,3 +8,4 @@
255.255.255.255 broadcasthost
::1 localhost
fe80::1%lo0 localhost
+127.0.0.1 example.com
View a backup with hosts backups show:
> hosts backups show hosts--backup-20200101000000
##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting. Do not change this entry.
##
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1 localhost
fe80::1%lo0 localhost
127.0.0.1 example.com
Restore a backup with hosts backups restore. Before a backup is
restored, a new one is created to avoid data loss:
> hosts backups restore hosts--backup-20200101000000
Backed up to /etc/hosts--backup-20200102000001
Restored from backup: hosts--backup-20200101000000
Viewing and Editing /etc/hosts Directly
hosts file prints the raw contents of /etc/hosts:
> hosts file
##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting. Do not change this entry.
##
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1 localhost
fe80::1%lo0 localhost
hosts edit opens /etc/hosts in your editor:
> hosts edit
--auto-sudo
When the --auto-sudo flag is used, all write operations that require
sudo will automatically rerun the command using sudo when the current user
does not have write permissions for the hosts file.
To have this option always enabled, add the following line to your shell
configuration (.bashrc, .zshrc, or similar):
alias hosts="hosts --auto-sudo"
Help
Usage:
hosts [<search string>]
hosts add <ip> <hostname> [<comment>]
hosts backups [create | (compare | delete | restore | show) <filename>]
hosts block <hostname>...
hosts disable (<ip> | <hostname> | <search string>)
hosts disabled
hosts edit
hosts enable (<ip> | <hostname> | <search string>)
hosts enabled
hosts file
hosts list [enabled | disabled | <search string>]
hosts search <search string>
hosts show (<ip> | <hostname> | <search string>)
hosts remove (<ip> | <hostname> | <search string>) [--force]
hosts unblock <hostname>...
hosts --auto-sudo
hosts -h | --help
hosts --version
Options:
--auto-sudo Run write commands with `sudo` automatically.
-h --help Display this help information.
--version Display version information.
Help:
hosts help [<command>]
For full usage, run:
hosts help
For help with a particular command, try:
hosts help <command name>
Subcommands
(default) • add • backups • block • commands • disable • disabled • edit • enable • enabled • file • help • list • remove • search • show • unblock • version
hosts
Usage:
hosts [<search string>]
Description:
List the existing IP / hostname pairs, optionally limited to a specified
state. When provided with a seach string, all matching enabled records will
be printed.
Alias for `hosts list`
hosts add
Usage:
hosts add <ip> <hostname> [<comment>]
Description:
Add a given IP address and hostname pair, along with an optional comment.
hosts backups
Usage:
hosts backups
hosts backups create
hosts backups compare <filename>
hosts backups delete <filename>
hosts backups restore <filename> [--skip-backup]
hosts backups show <filename>
Subcommands:
backups List available backups.
backups create Create a new backup of the hosts file.
backups compare Compare a backup file with the current hosts file.
backups delete Delete the specified backup.
backups restore Replace the contents of the hosts file with a
specified backup. The hosts file is automatically
backed up before being overwritten unless the
'--skip-backup' flag is specified.
backups show Show the contents of the specified backup file.
Description:
Manage backups.
hosts block
Usage:
hosts block <hostname>...
Description:
Block one or more hostnames by adding new entries assigned to `127.0.0.1`
for IPv4 and both `fe80::1%lo0` and `::1` for IPv6.
Blocklists
hosts commands
Usage:
hosts commands [--raw]
Options:
--raw Display the command list without formatting.
Description:
Display the list of available commands.
hosts disable
Usage:
hosts disable (<ip> | <hostname> | <search string>)
Description:
Disable one or more records based on a given ip address, hostname, or
search string.
hosts disabled
Usage:
hosts disabled
Description:
List all disabled records. This is an alias for `hosts list disabled`.
hosts edit
Usage:
hosts edit
Description:
Open the /etc/hosts file in your $EDITOR.
hosts enable
Usage:
hosts enable (<ip> | <hostname> | <search string>)
Description:
Enable one or more disabled records based on a given ip address, hostname,
or search string.
hosts enabled
Usage:
hosts enabled
Description:
List all enabled records. This is an alias for `hosts list enabled`.
hosts file
Usage:
hosts file
Description:
Print the entire contents of the /etc/hosts file.
hosts help
Usage:
hosts help [<command>]
Description:
Display help information for hosts or a specified command.
hosts list
Usage:
hosts list [enabled | disabled | <search string>]
Description:
List the existing IP / hostname pairs, optionally limited to a specified
state. When provided with a seach string, all matching enabled records will
be printed.
hosts remove
Usage:
hosts remove (<ip> | <hostname> | <search string>) [--force]
hosts remove <ip> <hostname>
Options:
--force Skip the confirmation prompt.
Description:
Remove one or more records based on a given IP address, hostname, or search
string. If an IP and hostname are both provided, only records matching the
IP and hostname pair will be removed.
hosts search
Usage:
hosts search <search string>
Description:
Search entries for <search string>.
hosts show
Usage:
hosts show (<ip> | <hostname> | <search string>)
Description:
Print entries matching a given IP address, hostname, or search string.
hosts unblock
Usage:
hosts unblock <hostname>...
Description:
Unblock one or more hostnames by removing the entries from the hosts file.
hosts version
Usage:
hosts (version | --version)
Description:
Display the current program version.
Tests
To run the test suite, install Bats and
run bats test in the project root directory.
Copyright (c) 2015-present William Melody • See LICENSE for details.