iripdb: 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/iripdb - from package: iripdb

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

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