slave: 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/lib/tinymux/game/bin/slave - from package: tinymux

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

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