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