marble-touch: 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/marble-touch - from package: marble-touch

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

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