bpecho: command not found

Have You tried accessing the binary with the full path?

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/bpecho - from package: ion

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