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67 lines
1.9 KiB
Org Mode
67 lines
1.9 KiB
Org Mode
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:PROPERTIES:
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:ID: dd64a585-6fa1-438e-9e0d-5775c0d55c37
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:END:
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#+title: Command line: cURL
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#+date: "2021-06-04 10:56:52 +08:00"
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#+date_modified: "2021-10-24 22:02:49 +08:00"
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#+language: en
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#+property: header-args :eval no
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The all-time favorite client-side networking tool for basic stuff.
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It is seriously one of the best free and open-source tool out there with the plethora of protocols, leading implementation for various protocols such as HTTP3, and a lot of configurable options to fully control your request.
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* Synopsis
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#+begin_src
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curl [option...] [URL...]
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#+end_src
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cURL supports creating requests with different protocols.
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Among them are HTTP, Gopher, DICT, and simple file.
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To see more, you can view the cURL manual page (i.e., ~man curl.1~) and see the protocols section.
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* Options
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- =-o [FILE], --output [FILE]= - save the results in the given file
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- =-O, --remote-name= - save the results as the remote name; useful for downloading
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- =-L, --location= - if there redirects, follow them; mainly used in HTTP and download links that often redirects to the real location
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* Examples
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This is a massive tool with a massive history so a massive list may be justified for this one.
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** Basic usage
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#+begin_src bash
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# It will be recognized as a request to an HTTP endpoint in 'gnu.org'.
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curl https://gnu.org
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# Save the result in a file.
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curl https://foo-dogsquared.github.io --output filename
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#+end_src
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** Go-to command for downloading files with cURL
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#+begin_src bash
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curl -LO https://cdn.media.ccc.de/events/lac/lac18/h264-hd/lac18-24-eng-Carla_Plugin_Host_-_Feature_overview_and_workflows_hd.mp4
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#+end_src
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It can be also written like the following code block.
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Useful when scripting to make it readable.
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#+begin_src bash
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curl --location --output-name https://cdn.media.ccc.de/events/lac/lac18/h264-hd/lac18-24-eng-Carla_Plugin_Host_-_Feature_overview_and_workflows_hd.mp4
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#+end_src
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