novacom: 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/novacom - from package: novacom-client

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

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