xbsh: 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/xbsh - from package: bsh

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

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