moon-buggy: 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/moon-buggy - from package: moon-buggy

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

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