sitecapturer: 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/share/doc/libhtmlparser-java-doc/examples/bin/sitecapturer - from package: libhtmlparser-java-doc

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

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