Update cheatsheets

linux/mesg

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# mesg
+
+> Check or set a terminal's ability to receive messages from other users, usually from the `write` command.
+> See also `write`, `talk`.
+> More information: <https://manned.org/mesg.1>.
+
+- Check terminal's openness to write messages:
+
+`mesg`
+
+- Disallow receiving messages from other users:
+
+`mesg n`
+
+- Allow receiving messages from other users:
+
+`mesg y`
+
+- Enable [v]erbose mode, printing a warning if the command is not executed from a terminal:
+
+`mesg --verbose`