Update cheatsheets

tldr/linux/eww

@@ -0,0 +1,33 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# eww
+
+> Implement your own custom widgets in any window manager.
+> More information: <https://elkowar.github.io/eww>.
+
+- Start the daemon:
+
+`eww daemon`
+
+- Open a widget:
+
+`eww -c {{path/to/source_code_directory}} open {{window_name}}`
+
+- Close a widget:
+
+`eww -c {{path/to/source_code_directory}} close {{window_name}}`
+
+- Reload the configuration:
+
+`eww reload`
+
+- Kill the daemon:
+
+`eww kill`
+
+- Print and watch logs:
+
+`eww logs`

tldr/sha256sum

@@ -31,3 +31,7 @@ source: https://github.com/tldr-pages/tldr.git
 - Only show a message when verification fails, ignoring missing files:
 
 `sha256sum --ignore-missing --check --quiet {{path/to/file.sha256}}`
+
+- Check known SHA256 sum of a file:
+
+`echo {{known-sha256-sum-of-the-file}} {{path/to/file}} | sha256sum --check`