rate4site: 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/rate4site - from package: rate4site

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

Error in other languages:
rate4site: bevel nie gevind nie
rate4site: comandă negăsită
rate4site: comando não encontrado
rate4site: commande introuvable
rate4site: command not found
rate4site: käsku ei ole
rate4site: không tìm thấy lệnh
rate4site: komanda nerasta
rate4site: Kommando nicht gefunden.
rate4site: kommandot finns inte
rate4site: komut yok
rate4site: nie znaleziono polecenia
rate4site: níor aimsíodh an t-ordú
rate4site: no se encontró la orden
rate4site: no s'ha trobat l'ordre
rate4site: opdracht niet gevonden
rate4site: parancs nem található
rate4site: perintah tidak ditemukan
rate4site: príkaz nenájdený
rate4site: příkaz nenalezen
rate4site: команда не найдена
rate4site: командата не е открита
rate4site: 命令找不到
rate4site: コマンドが見つかりません