Update cheatsheets

rg

@@ -0,0 +1,42 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# rg
+
+> Ripgrep is a recursive line-oriented search tool.
+> Aims to be a faster alternative to `grep`.
+> More information: <https://github.com/BurntSushi/ripgrep>.
+
+- Recursively search the current directory for a regular expression:
+
+`rg {{regular_expression}}`
+
+- Search for regular expressions recursively in the current directory, including hidden files and files listed in `.gitignore`:
+
+`rg --no-ignore --hidden {{regular_expression}}`
+
+- Search for a regular expression only in a subset of directories:
+
+`rg {{regular_expression}} {{set_of_subdirs}}`
+
+- Search for a regular expression in files matching a glob (e.g. `README.*`):
+
+`rg {{regular_expression}} --glob {{glob}}`
+
+- Search for filenames that match a regular expression:
+
+`rg --files | rg {{regular_expression}}`
+
+- Only list matched files (useful when piping to other commands):
+
+`rg --files-with-matches {{regular_expression}}`
+
+- Show lines that do not match the given regular expression:
+
+`rg --invert-match {{regular_expression}}`
+
+- Search a literal string pattern:
+
+`rg --fixed-strings -- {{string}}`