btestindexes: 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/btestindexes - from package: bfast

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

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