mccs: 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 Debian possible default full paths are:

/usr/bin/mccs - from package: mccs

You may install the required package with command apt-get install {package}

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