mhname - check availability of Minehut server names

mhname

#!/bin/sh
#
# usage:
#   mhname [names...]
# or
#   mhname < names-list.txt
#
# requires:
#   jq, curl
#
# mhname's output looks like this:
#   Is 'servername' taken: true
#
# If arguments are passed to mhname, it will check each one for availability as
# a server name. Otherwise, it reads a list of files from stdin and checks each
# one for availability.
#
# Written by spitemim.
# This code is public domain. Anyone can use it for anything for any reason.

check_name () {
    name="$1"

    exists="$(
        curl -s "https://api.minehut.com/server/$name?byName=true" |
        jq -c 'if .server then true else false end'
    )"

    printf "%s\n" "$exists"
}

if [ $# -gt 0 ]
then
    for arg in "$@"
    do
        available="$(check_name "$arg")"
        printf "Is '%s' taken: %s\n" "$arg" "$available"
    done

    return 0
fi

while read name
do
    available="$(check_name "$name")"
    printf "Is '%s' taken: %s\n" "$name" "$available"
done

return 0