bterm: 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/bterm - from package: bogl-bterm

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

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