mate-maximus: 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/mate-maximus - from package: mate-netbook

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

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