radembedded: 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/sbin/radembedded - from package: libfreeradius-client-dev

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

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