CMCRequest: 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/CMCRequest - from package: pki-java-tools

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

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