random-word: 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/random-word - from package: chiark-scripts

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

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