alice: 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/alice - from package: alice

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

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