ripright: 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 CentOS possible default full paths are:

/usr/bin/ripright - from package: ripright

You may install the required package with command yum install {package}

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