genius: command not found

Have You tried accessing the binary with the full path?

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/genius - from package: genius

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