xbs: 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/xbs - from package: xbs

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

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