Add Add A Range Of Filenames To gitignore as a Git TIL

git/add-a-range-of-filenames-to-gitignore.md

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+# Add A Range Of Filenames To gitignore
+
+The `.gitignore` file is a file where you can list files that should be ignored
+by git. This will prevent them from showing up in diffs, `git status`, etc.
+Most entries in the `.gitignore` file will plainly correspond to a single file.
+
+```
+# ignore env var files
+.env
+.env.local
+```
+
+Sometimes a project has a bunch of similarly named files. Autogenerated files
+are a prime example. For instance, a web app project may contain several
+sitemap files with incrementing suffix values (i.e. `sitemap-1.xml`,
+`sitemap-2.xml`, `sitemap-3.xml`, ...).
+
+I'd like to avoid having to type those all out in my `.gitignore` file. And I
+don't want to have to add new entries whenever another increment of the file is
+generated.
+
+I can handle all the current ones and future ones in a single line using some
+range pattern matching supported by the `.gitignore` file format.
+
+```
+# ignore sitemap files
+public/sitemap-[1-99].xml
+```
+
+This will ignore any sitemap files suffixed with 1 to 99. I don't really expect
+there to ever be more than handful of those files, so _99_ should definitely do
+the trick.
+
+[source](https://www.golinuxcloud.com/gitignore-examples/#5_Examples_of_pattern_matching_in_gitignore)