oidua: 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/oidua - from package: oidua

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

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