fmaster1: 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/fmaster1 - from package: pvm-examples

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

Error in other languages:
fmaster1: bevel nie gevind nie
fmaster1: comandă negăsită
fmaster1: comando não encontrado
fmaster1: commande introuvable
fmaster1: command not found
fmaster1: käsku ei ole
fmaster1: không tìm thấy lệnh
fmaster1: komanda nerasta
fmaster1: Kommando nicht gefunden.
fmaster1: kommandot finns inte
fmaster1: komut yok
fmaster1: nie znaleziono polecenia
fmaster1: níor aimsíodh an t-ordú
fmaster1: no se encontró la orden
fmaster1: no s'ha trobat l'ordre
fmaster1: opdracht niet gevonden
fmaster1: parancs nem található
fmaster1: perintah tidak ditemukan
fmaster1: príkaz nenájdený
fmaster1: příkaz nenalezen
fmaster1: команда не найдена
fmaster1: командата не е открита
fmaster1: 命令找不到
fmaster1: コマンドが見つかりません