Open 2 Gnome terminals: _1: ssh--tunnel to linux-Jumpbox, _2: rdp to Windows Machine

ssh-tunnel-to-windowsbox.sh

#!/usr/bin/env bash
# create an SSH Tunnel to a Windows Remote Desktop machine via a sshd-jumpbox
# with SSH, local port fortwarding, and xfreerdp/rdesktop.
#
# last lines (xdotool ...) are optional
# they will open new gnome-terminal windows
# 
# recommended step before
#   ssh-agent add some-privatekey
# 
# in first shell, open a tunnel
# using local ssh port forwarding 
# 
#
# knb 20220322
# Alternatives: xfreerdp or rdesktop
#"xfreerdp /u:conze' /p:'teufenlabor'" 
commands=(
 # the actual commands, can be run standalone-
 # use TWO (2) terminal windows, one for each command
"ssh win.machine.xxx -L 1111:some.jumpbox.ip:3389"
"rdesktop 127.0.0.1:1111 -u username -p password "
)
len=${#commands[@]}

if [ $# -eq 0 ];then
    num=$len
else
    num=$1
fi

n=$((len-num))
command=${commands[$n]}
num=$((num-1))

# optional code. 
# https://unix.stackexchange.com/a/192524/66342
# open gnome terminal with several tabs 
# and execute a few commands in every tab
#
# Dependencies:
#   sudo apt install xdotool
#

me=$(realpath $0)
xdotool key ctrl+shift+t

if [ $num -gt -1 ]; then
  sleep 1; 
  xdotool type --delay 1 --clearmodifiers "$me $num; ${command}"; 
  xdotool key Return;
fi