abrt-dump-oops: 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/abrt-dump-oops - from package: abrt-addon-kerneloops

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

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