Nginx：重写以从$ uri中删除最后一条路径

Question

I'm moving all document from /docs/path/to/sub/*.pdf to their parent folder, /docs/path/to/*.pdf .

How to redirect from old url:

example.com/docs/path/to/sub/file.pdf

to new url

example.com/docs/path/to/file.pdf

I'm using method below but not work:

location /docs/ {
  rewrite ^/docs/([a-zA-Z_]+)/([a-zA-Z_]+)/([a-zA-Z_]+)/([a-zA-Z_]+)\.(.*)$  /docs/$1/$2/$3/$5 permanent;
}

Answer 1

You're using permanent flag which means a redirect, the URL would probably return 404 after the redirect, try replacing permanent with last and see if it works.

EDIT:

I think your mistake is that you are matching the extension, so you are doing the counting wrong, you don't have enough capturing blocks. I'd like to do it in a more dynamic way though, not sure if this will work.

location ^~ /docs(.*)/([^/]+)/(.*) {
    try_files $uri @redirect;
}
location @redirect {
    return 301 $scheme$http_host/docs$1$3;
}

if not you can change your current rewrite, assuming you have 5 capturing blocks,

/docs/$1/$2/$4$5

last 2 are file+extension