fwb_iosacl: 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/fwb_iosacl - from package: fwbuilder

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

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