cubeview: 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/cubeview - from package: yorick-cubeview

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

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