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