: How to remove a prefix from the old filenames and redirect to the new filename? I have a bunch of old files prefixed with old- (e.g. old-abcde.php). I need an htaccess rule to set up a 301

@Alves908

Using mod_rewrite in the .htaccess file in the document root:

RewriteEngine On
RewriteRule ^(.+/)?old-(.*) / [R=301,L]


This will handle old- files in the document root and anywhere on the filesystem (not explicitly stated in your question, but the other answers assume these files are all located in the document root). It assumes that abc.php is in the same directory as old-abc.php.

The slash prefix on the substitution (ie. /) is required in the case of an external redirect, otherwise the directory prefix will be added and the redirect will break, exposing your directory structure.

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@Sent6035632

I would use this in the .htaccess file :

RewriteEngine on
RewriteRule old-(.*)$ [L,R=301]


Add QSA between the brackets if you have to keep the additional query string (like ?ID=xxxxx).
Specify R=301 to make a 301 redirect and specify the redirect is permanent.

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@XinRu657

Try ModRewrite:

RewriteEngine On
RewriteRule old-(.*)$ [NE,R]


This sends an 301 to the browser and redirects it.

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