qmidinet: 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/qmidinet - from package: qmidinet

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

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