prelink: 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/sbin/prelink - from package: prelink

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

On Debian possible default full paths are:

/usr/sbin/prelink - from package: prelink

You may install the required package with command apt-get install {package}

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