recursion: 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/recursion - from package: piglit

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

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