dwww-find: 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/sbin/dwww-find - from package: dwww

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

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