easy_eliza: 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/easy_eliza - from package: tempest-for-eliza

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

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