qtinfo: 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/qtinfo - from package: quicktime-utils

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

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