cookboob: 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/cookboob - from package: weboob

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

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