most important parameters according to chatGPT

  • -X, –request: To specify the HTTP request method (GET, POST, PUT, DELETE).
  • -H, –header: For including custom headers in the request.
  • -d, –data: Used for sending data with POST requests, commonly for form data or JSON.
  • -o, –output: To save the response content to a local file.
  • -L, –location: For automatically following HTTP redirects.
  • -u, –user: To provide HTTP authentication credentials (username:password).
  • -k, –insecure: For bypassing SSL certificate verification.
  • -I, –head: To retrieve and display only the response headers.

Files

  • You can Download or Upload files
# download
curl -O https://example.com/file.zip

# upload
curl -F "file=@localfile.txt" https://example.com/upload

sending E-Mails

Send an email through curl:

# Mail template
From: from@steh.de
To: to@steh.de
Subject: curl E-Mail

Hey,

this is an email sent using curl.

# Send mail
curl -vk smtp://mailserver.de --mail-from from@steh.de --mail-rcpt to@steh.de --ssl --upload-file mail.txt

send requests to webapps

# Find values for request
curl -X GET http://XX.XX.XX.XX/admin.php

# specify user agent
curl -A "My User Agent" https://example.com

# Send data
curl -X POST -d "username=admin" -d "password=admin" http://XX.XX.XX.XX/admin.php

Reference

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