rdp-connect.sh

#!/bin/bash                                                                                                                                                                                                   

declare -A data
data[host]=''
data[port]=''
data[user]=''
data[pw]=''
data[domain]=''

function usage {
    printf -- "options:\n"
    printf -- "-H Host "
    printf -- "[-P port] "
    printf -- "[-u user] "
    printf -- "-p password "
    printf -- "[-D domain]"
    printf -- "\n\n"
}

while getopts H:P:u:p:D:h option
do
    case "$option" in
        H)
            data[host]=$OPTARG
            ;;
        P)
            data[port]=$OPTARG
            ;;
        u)
            data[user]=$OPTARG
            ;;
        p)
            data[pw]=$OPTARG
            ;;
        D)
            data[domain]=$OPTARG
            ;;
        h)
            usage
            exit 0
            ;;
        *)
            usage >&2
            exit 1
            ;;
    esac
done

for key in "${!data[@]}"
do
   if [ "$key" = 'host' ] || [ "$key" = 'pw' ]
   then
       if [ "${data[$key]}" = '' ]
       then
           echo "$key must be given!" >&2
           usage >&2
           exit 1
       fi
   fi
   if [ "$key" = 'user' ] && [ "${data[$key]}" = '' ]
   then
       data["$key"]="$USER"
   fi
done