nrefactory-demo-swf: 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/nrefactory-demo-swf - from package: nrefactory-samples

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

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