kojid: 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/kojid - from package: koji-builder

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

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