nfct: 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/sbin/nfct - from package: nfct

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

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