bcron-update: 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/sbin/bcron-update - from package: bcron

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

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