Etbg: 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/Etbg - from package: eterm

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

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