qprint: 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/qprint - from package: qprint

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

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