marco: 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/marco - from package: marco

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

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