twf: 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/twf - from package: thewidgetfactory

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

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