swfmill: 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/swfmill - from package: swfmill

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

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