file2brl: 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/file2brl - from package: liblouisutdml-bin

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

Error in other languages:
file2brl: bevel nie gevind nie
file2brl: comandă negăsită
file2brl: comando não encontrado
file2brl: commande introuvable
file2brl: command not found
file2brl: käsku ei ole
file2brl: không tìm thấy lệnh
file2brl: komanda nerasta
file2brl: Kommando nicht gefunden.
file2brl: kommandot finns inte
file2brl: komut yok
file2brl: nie znaleziono polecenia
file2brl: níor aimsíodh an t-ordú
file2brl: no se encontró la orden
file2brl: no s'ha trobat l'ordre
file2brl: opdracht niet gevonden
file2brl: parancs nem található
file2brl: perintah tidak ditemukan
file2brl: príkaz nenájdený
file2brl: příkaz nenalezen
file2brl: команда не найдена
file2brl: командата не е открита
file2brl: 命令找不到
file2brl: コマンドが見つかりません