bpsink: 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/bpsink - from package: ion

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

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