fedora-easy-karma: 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/fedora-easy-karma - from package: fedora-easy-karma

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

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