prips: 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/prips - from package: prips

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

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