Update cheatsheets

linux/rofi

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# rofi
+
+> An application launcher and window switcher.
+> More information: <https://github.com/davatorium/rofi>.
+
+- Show the list of apps:
+
+`rofi -show drun`
+
+- Show the list of all commands:
+
+`rofi -show run`
+
+- Switch between windows:
+
+`rofi -show window`
+
+- Pipe a list of items to `stdin` and print the selected item to `stdout`:
+
+`printf "{{Choice1
+Choice2
+Choice3}}" | rofi -dmenu`