hbcixml3: 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/hbcixml3 - from package: aqbanking-devel

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

On Debian possible default full paths are:

/usr/bin/hbcixml3 - from package: aqbanking-tools

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

Error in other languages:
hbcixml3: bevel nie gevind nie
hbcixml3: comandă negăsită
hbcixml3: comando não encontrado
hbcixml3: commande introuvable
hbcixml3: command not found
hbcixml3: käsku ei ole
hbcixml3: không tìm thấy lệnh
hbcixml3: komanda nerasta
hbcixml3: Kommando nicht gefunden.
hbcixml3: kommandot finns inte
hbcixml3: komut yok
hbcixml3: nie znaleziono polecenia
hbcixml3: níor aimsíodh an t-ordú
hbcixml3: no se encontró la orden
hbcixml3: no s'ha trobat l'ordre
hbcixml3: opdracht niet gevonden
hbcixml3: parancs nem található
hbcixml3: perintah tidak ditemukan
hbcixml3: príkaz nenájdený
hbcixml3: příkaz nenalezen
hbcixml3: команда не найдена
hbcixml3: командата не е открита
hbcixml3: 命令找不到
hbcixml3: コマンドが見つかりません