rmedigicontrol: 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/rmedigicontrol - from package: alsa-tools-gui

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

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