blendminmax: 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/blendminmax - from package: piglit

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

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