using egrep in windows command

Question

I am a windows user and want to perform a crawl using following script (I downloaded wget and egrep)

wget --quiet http://example.com/sitemap.xml --output-document - | egrep -o "http://example.com[^<]+" | wget -q --delete-after -i -

Hovewer the egrep option is not recognized, can you advise? Thank you

Answer 1

This is a unix command line. Try installing cygwin or git-bash open a bash window and run the command from there.