nfprofile: 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 CentOS possible default full paths are:

/usr/bin/nfprofile - from package: nfdump

You may install the required package with command yum install {package}

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