DRAWxtl55: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/DRAWxtl55 - from package: drawxtl

You may install the required package with command apt-get install {package}
Error in other languages:
DRAWxtl55: bevel nie gevind nie
DRAWxtl55: comandă negăsită
DRAWxtl55: comando não encontrado
DRAWxtl55: commande introuvable
DRAWxtl55: command not found
DRAWxtl55: käsku ei ole
DRAWxtl55: không tìm thấy lệnh
DRAWxtl55: komanda nerasta
DRAWxtl55: Kommando nicht gefunden.
DRAWxtl55: kommandot finns inte
DRAWxtl55: komut yok
DRAWxtl55: nie znaleziono polecenia
DRAWxtl55: níor aimsíodh an t-ordú
DRAWxtl55: no se encontró la orden
DRAWxtl55: no s'ha trobat l'ordre
DRAWxtl55: opdracht niet gevonden
DRAWxtl55: parancs nem található
DRAWxtl55: perintah tidak ditemukan
DRAWxtl55: príkaz nenájdený
DRAWxtl55: příkaz nenalezen
DRAWxtl55: команда не найдена
DRAWxtl55: командата не е открита
DRAWxtl55: 命令找不到
DRAWxtl55: コマンドが見つかりません