buxon: 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/buxon - from package: buxon

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