Update cheatsheets

linux/sm

@@ -0,0 +1,33 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# sm
+
+> Displays a short message fullscreen.
+> More information: <https://github.com/nomeata/screen-message>.
+
+- Display a message in full-screen:
+
+`sm "{{Hello World!}}"`
+
+- Display a message with inverted colors:
+
+`sm -i "{{Hello World!}}"`
+
+- Display a message with a custom foreground color:
+
+`sm -f {{blue}} "{{Hello World!}}"`
+
+- Display a message with a custom background color:
+
+`sm -b {{#008888}} "{{Hello World!}}"`
+
+- Display a message rotated 3 times (in steps of 90 degrees, counterclockwise):
+
+`sm -r {{3}} "{{Hello World!}}"`
+
+- Display a message using the output from another command:
+
+`{{echo "Hello World!"}} | sm -`