certmonger: 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/sbin/certmonger - from package: certmonger

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

On Debian possible default full paths are:

/usr/sbin/certmonger - from package: certmonger

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

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