bomber: 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/bomber - from package: kdegames

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

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