ricky-forge-changes: 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/ricky-forge-changes - from package: python-ricky

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

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