mftrace: 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/mftrace - from package: mftrace

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

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