QCExtractor: 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/QCExtractor - from package: topp

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

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