brepeat: 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/brepeat - from package: bfast

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

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