qadmin: 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/qadmin - from package: skytools3

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

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