bfast: 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/bfast - from package: bfast

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

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