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