> go version
go version go1.16.3 linux/amd64

> go get github.com/areYouLazy/hosty

> cd github.com/areYouLazy/hosty
> go build
> go install

> hosty show localhost
127.0.0.1       localhost
::1             localhost

> hosty comment 127.0.0.1
done

[email protected]$ hosty -h
Hosty is a command-line tool to interact with the /etc/hosts file.
It allows for fast inspect and edit of the file. Main goals of this tool are to be fast, reliable and scriptable.
Hosty uses libhosty to manipulate the file. You can find more about libhosty at https://github.com/areYouLazy/libhosty

Usage:
  hosty [command]

Available Commands:
  add         Add file data
  comment     Comment file data
  delete      Delete file data
  export      Export file to a custom location
  help        Help about any command
  restore     Restore default hosts file
  show        Show file data
  uncomment   Uncomment file data

Flags:
  -b, --backup        backup file before editing. Backup is hidden and named with the format: .YYYYMMDDHHmmss-hosts.bck
  -f, --file string   parse a custom /etc/hosts-like file instead of the system default one
  -h, --help          help for hosty
  -j, --json          print output in json format for easy parsing
  -q, --quiet         suppress every output except for errors
  -v, --version       version for hosty

Use "hosty [command] --help" for more information about a command.

[email protected]$ # show entries with hostname equale to localhost
[email protected]$ hosty show localhost
127.0.0.1         localhost
::1               localhost

[email protected]$ # show entries with ip equal to 127.0.0.1
[email protected]$ hosty show 127.0.0.1
127.0.0.1         localhost

[email protected]$ # add an entrie with ip 1.2.3.4 and hostname my.custom.dns
[email protected]$ hosty add 1.2.3.4 my.custom.dns
done

[email protected]$ # show entries with ip equal to 1.2.3.4
[email protected]$ hosty show 1.2.3.4
1.2.3.4         my.custom.dns

[email protected]$ # comment entries with ip equal to 1.2.3.4
[email protected]$ hosty comment 1.2.3.4
done

[email protected]$ # show entries with ip equal to 1.2.3.4
[email protected]$ hostyc-li show 1.2.3.4
# 1.2.3.4         my.custom.dns

[email protected]$ # uncomment entries with ip equal to 1.2.3.4 suppress output
[email protected]$ hosty uncomment 1.2.3.4 --quiet

[email protected]$ # show entries with ip equal to 1.2.3.4 output in json
[email protected]$ hosty show 1.2.3.4 --json | jq .
{
  "raw": "1.2.3.4         my.custom.dns"
}

[email protected]$ # add another entry with same ip and different hostname output in json
[email protected]$ hosty add 1.2.3.4 my.custom2.dns --json
{"done":true}

[email protected]$ # show entries with ip equal to 1.2.3.4 output in json with details
[email protected]$ hosty show 1.2.3.4 --json --details | jq .
{
  "action": "show",
  "number": 12,
  "type": "address",
  "address": "1.2.3.4",
  "hostnames": [
    "my.custom.dns",
    "my.custom2.dns"
  ],
  "comment": "",
  "is_commented": false,
  "raw": "127.0.0.1       my.custom.dns my.custom2.dns"
}

[email protected]$ # delete entries with ip equal to 1.2.3.4
[email protected]$ hosty delete 1.2.3.4
done

[email protected]$ # show entries with ip equal to 1.2.3.4
[email protected]$ hosty show 1.2.3.4
nothing found for ip 1.2.3.4

[email protected]$ hosty show [PARAMETER]

[email protected]$ # Aliases
[email protected]$ hosty sho localhost
[email protected]$ hosty sh localhost
[email protected]$ hosty s localhost

[email protected]$ hosty add [IP] [FQDN] [COMMENT]

[email protected]$ # Aliases
[email protected]$ hosty ad 1.2.3.4 my.custom.dns "DNS#1"
[email protected]$ hosty a 1.2.3.4 my.custom.dns

[email protected]$ hosty delete [PARAMETER]

[email protected]$ # Aliases
[email protected]$ hosty delet 1.2.3.4
[email protected]$ hosty dele 1.2.3.4
[email protected]$ hosty del 1.2.3.4
[email protected]$ hosty de 1.2.3.4
[email protected]$ hosty d 1.2.3.4
[email protected]$ hosty rem 1.2.3.4
[email protected]$ hosty rm 1.2.3.4

[email protected]$ hosty comment [PARAMETER]

[email protected]$ # Aliases
[email protected]$ hosty commen 1.2.3.4
[email protected]$ hosty comme 1.2.3.4
[email protected]$ hosty comm 1.2.3.4
[email protected]$ hosty com 1.2.3.4
[email protected]$ hosty co 1.2.3.4
[email protected]$ hosty c 1.2.3.4

[email protected]$ hosty uncomment [PARAMETER]

[email protected]$ # Aliases
[email protected]$ hosty uncommen 1.2.3.4
[email protected]$ hosty uncomme 1.2.3.4
[email protected]$ hosty uncomm 1.2.3.4
[email protected]$ hosty uncom 1.2.3.4
[email protected]$ hosty unco 1.2.3.4
[email protected]$ hosty unc 1.2.3.4
[email protected]$ hosty un 1.2.3.4
[email protected]$ hosty u 1.2.3.4

[email protected]$ hosty export [PARAMETER]

[email protected]$ # Aliases
[email protected]$ hosty expor /home/sonica/hosts-export.txt
[email protected]$ hosty expo /home/sonica/hosts-export.txt
[email protected]$ hosty exp /home/sonica/hosts-export.txt
[email protected]$ hosty ex /home/sonica/hosts-export.txt
[email protected]$ hosty e /home/sonica/hosts-export.txt

[email protected]$ hosty restore [PARAMETER]

[email protected]$ # Aliases
[email protected]$ hosty restor darwin
[email protected]$ hosty resto darwin
[email protected]$ hosty rest darwin
[email protected]$ hosty res darwin
[email protected]$ hosty re darwin
[email protected]$ hosty r darwin