acexml.mpb: 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"

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