cconfig: 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/cconfig - from package: xrootd-server

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

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