owx-get: command not found

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/owx-get - from package: owx

You may install the required package with command apt-get install {package}

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