qt2text: 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/qt2text - from package: quicktime-utils

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

Error in other languages:
qt2text: bevel nie gevind nie
qt2text: comandă negăsită
qt2text: comando não encontrado
qt2text: commande introuvable
qt2text: command not found
qt2text: käsku ei ole
qt2text: không tìm thấy lệnh
qt2text: komanda nerasta
qt2text: Kommando nicht gefunden.
qt2text: kommandot finns inte
qt2text: komut yok
qt2text: nie znaleziono polecenia
qt2text: níor aimsíodh an t-ordú
qt2text: no se encontró la orden
qt2text: no s'ha trobat l'ordre
qt2text: opdracht niet gevonden
qt2text: parancs nem található
qt2text: perintah tidak ditemukan
qt2text: príkaz nenájdený
qt2text: příkaz nenalezen
qt2text: команда не найдена
qt2text: командата не е открита
qt2text: 命令找不到
qt2text: コマンドが見つかりません