How to extract domain name from url?

You can use simple AWK way to extract the domain name as follows:

echo http://example.com/index.php | awk -F[/:] '{print $4}'

OUTPUT: example.com

:-)

regex bash url

$ URI="http://user:pw@example.com:80/"$ echo $URI | sed -e 's/[^/]*\/\/\([^@]*@\)\?\([^:/]*\).*/\2/'example.com

regex bash url

basename "http://example.com"

Now of course, this won't work with a URI like this: http://www.example.com/index.html but you could do the following:

basename $(dirname "http://www.example.com/index.html")

Or for more complex URIs:

echo "http://www.example.com/somedir/someotherdir/index.html" | cut -d'/' -f3

-d means "delimiter" and -f means "field"; in the above example, the third field delimited by the forward slash '/' is www.example.com.

CodeHunter