-Lオプションを付与すればOK.
レスポンスでスタータスコードが3xxでLocationヘッダーにURLが指定されてる場合に、Locationヘッダーに指定されたURLへのリクエストも実施します。
# -L オプションを付けないとリダイレクトしない
$curl -v https://google.co.jp
* Rebuilt URL to: https://google.co.jp/
* Trying 172.217.26.3...
* Connected to google.co.jp (172.217.26.3) port 443 (#0)
* Initializing NSS with certpath: sql:/etc/pki/nssdb
* CAfile: /etc/pki/tls/certs/ca-bundle.crt
CApath: none
* SSL connection using TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
* Server certificate:
* subject: CN=*.google.co.jp,O=Google Inc,L=Mountain View,ST=California,C=US
* start date: 9月 13 17:11:49 2017 GMT
* expire date: 12月 06 17:09:00 2017 GMT
* common name: *.google.co.jp
* issuer: CN=Google Internet Authority G2,O=Google Inc,C=US
> GET / HTTP/1.1
> User-Agent: curl/7.40.0
> Host: google.co.jp
> Accept: */*
>
< HTTP/1.1 301 Moved Permanently
< Location: https://www.google.co.jp/
< Content-Type: text/html; charset=UTF-8
< Date: Sun, 01 Oct 2017 12:20:42 GMT
< Expires: Tue, 31 Oct 2017 12:20:42 GMT
< Cache-Control: public, max-age=2592000
< Server: gws
< Content-Length: 222
< X-XSS-Protection: 1; mode=block
< X-Frame-Options: SAMEORIGIN
< Alt-Svc: quic=":443"; ma=2592000; v="39,38,37,35"
<
<HTML><HEAD><meta http-equiv="content-type" content="text/html;charset=utf-8">
<TITLE>301 Moved</TITLE></HEAD><BODY>
<H1>301 Moved</H1>
The document has moved
<A HREF="https://www.google.co.jp/">here</A>.
</BODY></HTML>
* Connection #0 to host google.co.jp left intact
# -Lオプション付与でリダイレクト
$curl -L https://google.co.jp
なお、man curlを見ると以下のように記載されていました。
-L, --location
(HTTP/HTTPS) If the server reports that the requested page has
moved to a different location (indicated with a Location: header
and a 3XX response code), this option will make curl redo the
request on the new place. If used together with -i, --include or
-I, --head, headers from all requested pages will be shown. When
authentication is used, curl only sends its credentials to the
initial host. If a redirect takes curl to a different host, it
won't be able to intercept the user+password. See also --loca‐
tion-trusted on how to change this. You can limit the amount of
redirects to follow by using the --max-redirs option.
When curl follows a redirect and the request is not a plain GET
(for example POST or PUT), it will do the following request with
a GET if the HTTP response was 301, 302, or 303. If the response
code was any other 3xx code, curl will re-send the following
request using the same unmodified method.
You can tell curl to not change the non-GET request method to
GET after a 30x response by using the dedicated options for
that: --post301, --post302 and -post303.