Add Include Ignore Files In Ripgrep Search as a Unix TIL

README.md

@@ -10,7 +10,7 @@ pairing with smart people at Hashrocket.
 
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 - [Hexdump A Compiled File](unix/hexdump-a-compiled-file.md)
 - [Ignore A Directory During ripgrep Search](unix/ignore-a-directory-during-ripgrep-search.md)
 - [Ignore The Alias When Running A Command](unix/ignore-the-alias-when-running-a-command.md)
+- [Include Ignore Files In Ripgrep Search](unix/include-ignore-files-in-ripgrep-search.md)
 - [Interactively Browse Available Node Versions](unix/interactively-browse-availabile-node-versions.md)
 - [Interactively Switch asdf Package Versions](unix/interactively-switch-asdf-package-versions.md)
 - [Jump To The Ends Of Your Shell History](unix/jump-to-the-ends-of-your-shell-history.md)

unix/include-ignore-files-in-ripgrep-search.md

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+# Include Ignore Files In Ripgrep Search
+
+By default, [ripgrep (`rg`)](https://github.com/BurntSushi/ripgrep) will look
+for and respect _ignore_ files like `.gitignore`. Any file and directory marked
+by those ignore files will no be included in an `rg` search.
+
+This is usually what you want. Sometimes, however, it can be useful to get
+results from this ignored files as well.
+
+In order to ignore your ignore files, pass the `--no-ignore` flag to `rg`:
+
+```bash
+$ rg --no-ignore ENV_VAR_KEY
+```
+
+Something to keep in mind is that `rg` also ignores _hidden_ files and
+directories (those things that are prefixed with a `.`, such as `.env` or
+`.config/`). If some of your ignored files are also _hidden_ files, then they
+still won't show up in search. You'll need the `--hidden` flag as well.
+
+```bash
+$ rg --no-ignore --hidden ENV_VAR_KEY
+```
+
+A shorthand equivalent for that is `-uu`:
+
+```bash
+$ rg -uu ENV_VAR_KEY
+```
+
+See `man rg` for more details.