Update cheatsheets

surfraw

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# surfraw
+
+> Query a variety of web search engines.
+> Consists of a collection of elvi, each of which knows how to search a website.
+> More information: <http://surfraw.org>.
+
+- Display the list of supported website search scripts (elvi):
+
+`surfraw -elvi`
+
+- Open the elvi's results page for a specific search in the browser:
+
+`surfraw {{elvi}} "{{search_terms}}"`
+
+- Display an elvi description and its specific options:
+
+`surfraw {{elvi}} -local-help`
+
+- Search using an elvi with specific options and open the results page in the browser:
+
+`surfraw {{elvi}} {{elvi_options}} "{{search_terms}}"`
+
+- Display the URL to the elvi's results page for a specific search:
+
+`surfraw -print {{elvi}} "{{search_terms}}"`
+
+- Search using the alias:
+
+`sr {{elvi}} "{{search_terms}}"`