ccs_sync: 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/ccs_sync - from package: ricci

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

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