lqtremux: 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/lqtremux - from package: quicktime-utils

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

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