> 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

root@localhost$ 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.

root@localhost$ # show entries with hostname equale to localhost
root@localhost$ hosty show localhost
127.0.0.1         localhost
::1               localhost

root@localhost$ # show entries with ip equal to 127.0.0.1
root@localhost$ hosty show 127.0.0.1
127.0.0.1         localhost

root@localhost$ # add an entrie with ip 1.2.3.4 and hostname my.custom.dns
root@localhost$ hosty add 1.2.3.4 my.custom.dns
done

root@localhost$ # show entries with ip equal to 1.2.3.4
root@localhost$ hosty show 1.2.3.4
1.2.3.4         my.custom.dns

root@localhost$ # comment entries with ip equal to 1.2.3.4
root@localhost$ hosty comment 1.2.3.4
done

root@localhost$ # show entries with ip equal to 1.2.3.4
root@localhost$ hostyc-li show 1.2.3.4
# 1.2.3.4         my.custom.dns

root@localhost$ # uncomment entries with ip equal to 1.2.3.4 suppress output
root@localhost$ hosty uncomment 1.2.3.4 --quiet

root@localhost$ # show entries with ip equal to 1.2.3.4 output in json
root@localhost$ hosty show 1.2.3.4 --json | jq .
{
  "raw": "1.2.3.4         my.custom.dns"
}

root@localhost$ # add another entry with same ip and different hostname output in json
root@localhost$ hosty add 1.2.3.4 my.custom2.dns --json
{"done":true}

root@localhost$ # show entries with ip equal to 1.2.3.4 output in json with details
root@localhost$ 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"
}

root@localhost$ # delete entries with ip equal to 1.2.3.4
root@localhost$ hosty delete 1.2.3.4
done

root@localhost$ # show entries with ip equal to 1.2.3.4
root@localhost$ hosty show 1.2.3.4
nothing found for ip 1.2.3.4

root@localhost$ hosty show [PARAMETER]

root@localhost$ # Aliases
root@localhost$ hosty sho localhost
root@localhost$ hosty sh localhost
root@localhost$ hosty s localhost

root@localhost$ hosty add [IP] [FQDN] [COMMENT]

root@localhost$ # Aliases
root@localhost$ hosty ad 1.2.3.4 my.custom.dns "DNS#1"
root@localhost$ hosty a 1.2.3.4 my.custom.dns

root@localhost$ hosty delete [PARAMETER]

root@localhost$ # Aliases
root@localhost$ hosty delet 1.2.3.4
root@localhost$ hosty dele 1.2.3.4
root@localhost$ hosty del 1.2.3.4
root@localhost$ hosty de 1.2.3.4
root@localhost$ hosty d 1.2.3.4
root@localhost$ hosty rem 1.2.3.4
root@localhost$ hosty rm 1.2.3.4

root@localhost$ hosty comment [PARAMETER]

root@localhost$ # Aliases
root@localhost$ hosty commen 1.2.3.4
root@localhost$ hosty comme 1.2.3.4
root@localhost$ hosty comm 1.2.3.4
root@localhost$ hosty com 1.2.3.4
root@localhost$ hosty co 1.2.3.4
root@localhost$ hosty c 1.2.3.4

root@localhost$ hosty uncomment [PARAMETER]

root@localhost$ # Aliases
root@localhost$ hosty uncommen 1.2.3.4
root@localhost$ hosty uncomme 1.2.3.4
root@localhost$ hosty uncomm 1.2.3.4
root@localhost$ hosty uncom 1.2.3.4
root@localhost$ hosty unco 1.2.3.4
root@localhost$ hosty unc 1.2.3.4
root@localhost$ hosty un 1.2.3.4
root@localhost$ hosty u 1.2.3.4

root@localhost$ hosty export [PARAMETER]

root@localhost$ # Aliases
root@localhost$ hosty expor /home/sonica/hosts-export.txt
root@localhost$ hosty expo /home/sonica/hosts-export.txt
root@localhost$ hosty exp /home/sonica/hosts-export.txt
root@localhost$ hosty ex /home/sonica/hosts-export.txt
root@localhost$ hosty e /home/sonica/hosts-export.txt

root@localhost$ hosty restore [PARAMETER]

root@localhost$ # Aliases
root@localhost$ hosty restor darwin
root@localhost$ hosty resto darwin
root@localhost$ hosty rest darwin
root@localhost$ hosty res darwin
root@localhost$ hosty re darwin
root@localhost$ hosty r darwin