guilt-patchbomb: 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/guilt-patchbomb - from package: guilt

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

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