Solved

htaccess mod rewrite syntax, newbie help

Posted on 2004-08-01
2
251 Views
Last Modified: 2010-03-04
Basically I am wondering about some syntax issues.  The below htaccess file works fine for me.
However I have seen things written differently elsewhere and am wondering why it matters.

Here are some examples:
I have seen  mydomain\.com and mydomain.com
When do I need to use the "\"?
I have also seen (.*) and then ^(.*), what is the different here?
Also I have seen is there the ending "$" is not included at all, any reason for this?

If you could check the syntax of my code below and suggest changes let me know.

0 RewriteEngine on
1 RewriteCond %{HTTP_HOST} !^www.maindomain.com$ [NC]
2 RewriteCond %{REQUEST_URI} !^/robots\.txt$
3 RewriteRule (.*) http://www.maindomain.com/$1 [R=301]
4
5 #If robots.txt is requested from anything other than maindomain send new txt file.
6 RewriteCond %{HTTP_HOST} !^maindomain\.com
7 RewriteRule ^robots\.txt /robots_noindex.txt [L]
0
Comment
Question by:killer455
  • 2
2 Comments
 
LVL 18

Accepted Solution

by:
CrYpTiC_MauleR earned 50 total points
ID: 11692025
the \ means the period afterwards will mean a period character otherwise it will mean ANY character, so you must 'escape' it.

^ means the beggining of the string also $ means the end of the string.
0
 
LVL 18

Expert Comment

by:CrYpTiC_MauleR
ID: 11692028
http://regexlib.com/CheatSheet.htm will give you info on regualr expression syntax
0

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction As you’re probably aware the HTTP protocol offers basic / weak authentication, which in combination with the relevant configuration on your web server, provides the ability to password protect all or part of your host.  If you were not…
If you've heard about htaccess and it sounds like it does what you want, but you're not sure how it works... well, you're in the right place. Read on. Some Basics #1. It's a file and its filename is .htaccess (yes, with a dot in the front). #…
With the power of JIRA, there's an unlimited number of ways you can customize it, use it and benefit from it. With that in mind, there's bound to be things that I wasn't able to cover in this course. With this summary we'll look at some places to go…
As a trusted technology advisor to your customers you are likely getting the daily question of, ‘should I put this in the cloud?’ As customer demands for cloud services increases, companies will see a shift from traditional buying patterns to new…

867 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

23 Experts available now in Live!

Get 1:1 Help Now