mace2: 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/mace2 - from package: mace2

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

Error in other languages:
mace2: bevel nie gevind nie
mace2: comandă negăsită
mace2: comando não encontrado
mace2: commande introuvable
mace2: command not found
mace2: käsku ei ole
mace2: không tìm thấy lệnh
mace2: komanda nerasta
mace2: Kommando nicht gefunden.
mace2: kommandot finns inte
mace2: komut yok
mace2: nie znaleziono polecenia
mace2: níor aimsíodh an t-ordú
mace2: no se encontró la orden
mace2: no s'ha trobat l'ordre
mace2: opdracht niet gevonden
mace2: parancs nem található
mace2: perintah tidak ditemukan
mace2: príkaz nenájdený
mace2: příkaz nenalezen
mace2: команда не найдена
mace2: командата не е открита
mace2: 命令找不到
mace2: コマンドが見つかりません