dbamsg: 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/dbamsg - from package: dballe

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

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