fp-set-02: 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/lib64/piglit/bin/fp-set-02 - from package: piglit

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

Error in other languages:
fp-set-02: bevel nie gevind nie
fp-set-02: comandă negăsită
fp-set-02: comando não encontrado
fp-set-02: commande introuvable
fp-set-02: command not found
fp-set-02: käsku ei ole
fp-set-02: không tìm thấy lệnh
fp-set-02: komanda nerasta
fp-set-02: Kommando nicht gefunden.
fp-set-02: kommandot finns inte
fp-set-02: komut yok
fp-set-02: nie znaleziono polecenia
fp-set-02: níor aimsíodh an t-ordú
fp-set-02: no se encontró la orden
fp-set-02: no s'ha trobat l'ordre
fp-set-02: opdracht niet gevonden
fp-set-02: parancs nem található
fp-set-02: perintah tidak ditemukan
fp-set-02: príkaz nenájdený
fp-set-02: příkaz nenalezen
fp-set-02: команда не найдена
fp-set-02: командата не е открита
fp-set-02: 命令找不到
fp-set-02: コマンドが見つかりません