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curl — Transfers data from or to a server. Supports most protocols, including HTTP, HTTPS, FTP, SCP, etc. S

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

How to use the curl command: Transfers data from or to a server. Supports most protocols, including HTTP, HTTPS, FTP, SCP, etc. See also: wcurl, wget. More information: <https://curl.se/docs/manpage.html>.

Solution

curl — Transfers data from or to a server. Supports most protocols, including HTTP, HTTPS, FTP, SCP, etc. See also: wcurl, wget. More information: <https://curl.se/docs/manpage.html>.

Make an HTTP GET request and dump the contents in stdout:

curl {{https://example.com}}

Make an HTTP GET request, follow any 3xx redirects, and dump the reply headers and contents to stdout:

curl {{[-L|--location]}} {{[-D|--dump-header]}} - {{https://example.com}}

Download a file, saving the output under the filename indicated by the URL:

curl {{[-O|--remote-name]}} {{https://example.com/filename.zip}}

Send form-encoded data (POST request of type application/x-www-form-urlencoded). Use --data @file_name or --data @'-' to read from stdin:

curl {{[-X|--request]}} POST {{[-d|--data]}} '{{name=bob}}' {{http://example.com/form}}

Send a request with an extra header, using a custom HTTP method and over a proxy (such as BurpSuite), ignoring insecure self-signed certificates:

curl {{[-k|--insecure]}} {{[-x|--proxy]}} {{http://127.0.0.1:8080}} {{[-H|--header]}} '{{Authorization: Bearer token}}' {{[-X|--request]}} {{GET|PUT|POST|DELETE|PATCH|...}} {{https://example.com}}

Send data in JSON format, specifying the appropriate Content-Type header:

curl {{[-d|--data]}} '{{{"name":"bob"}}}' {{[-H|--header]}} '{{Content-Type: application/json}}' {{http://example.com/users/1234}}

Pass client certificate and private key for the request, skipping certificate validation:

curl {{[-E|--cert]}} {{client.pem}} --key {{key.pem}} {{[-k|--insecure]}} {{https://example.com}}

Resolve a hostname to a custom IP address, with verbose output (similar to editing the /etc/hosts file for custom DNS resolution):

curl {{[-v|--verbose]}} --resolve {{example.com}}:{{80}}:{{127.0.0.1}} {{http://example.com}}

Code Snippets

Make an HTTP GET request and dump the contents in `stdout`

curl {{https://example.com}}

Make an HTTP GET request, follow any `3xx` redirects, and dump the reply headers and contents to `stdout`

curl {{[-L|--location]}} {{[-D|--dump-header]}} - {{https://example.com}}

Download a file, saving the output under the filename indicated by the URL

curl {{[-O|--remote-name]}} {{https://example.com/filename.zip}}

Send form-encoded data (POST request of type `application/x-www-form-urlencoded`). Use `--data @file_name` or `--data @'-'` to read from `stdin`

curl {{[-X|--request]}} POST {{[-d|--data]}} '{{name=bob}}' {{http://example.com/form}}

Send a request with an extra header, using a custom HTTP method and over a proxy (such as BurpSuite), ignoring insecure self-signed certificates

curl {{[-k|--insecure]}} {{[-x|--proxy]}} {{http://127.0.0.1:8080}} {{[-H|--header]}} '{{Authorization: Bearer token}}' {{[-X|--request]}} {{GET|PUT|POST|DELETE|PATCH|...}} {{https://example.com}}

Context

tldr-pages: common/curl

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