bpclock: 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/bpclock - from package: ion

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

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