bsf: 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/bsf - from package: code-aster-gui

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

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