webfsd: 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/webfsd - from package: webfs

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

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