abrt-dbus: 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/abrt-dbus - from package: abrt

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

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