idba: command not found

Have You tried accessing the binary with the full path?

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/idba - from package: idba

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