macro8x: 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/macro8x - from package: simh

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

Error in other languages:
macro8x: bevel nie gevind nie
macro8x: comandă negăsită
macro8x: comando não encontrado
macro8x: commande introuvable
macro8x: command not found
macro8x: käsku ei ole
macro8x: không tìm thấy lệnh
macro8x: komanda nerasta
macro8x: Kommando nicht gefunden.
macro8x: kommandot finns inte
macro8x: komut yok
macro8x: nie znaleziono polecenia
macro8x: níor aimsíodh an t-ordú
macro8x: no se encontró la orden
macro8x: no s'ha trobat l'ordre
macro8x: opdracht niet gevonden
macro8x: parancs nem található
macro8x: perintah tidak ditemukan
macro8x: príkaz nenájdený
macro8x: příkaz nenalezen
macro8x: команда не найдена
macro8x: командата не е открита
macro8x: 命令找不到
macro8x: コマンドが見つかりません