Update cheatsheets

linux/vncviewer

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# vncviewer
+
+> Launches a VNC (Virtual Network Computing) client.
+> More information: <https://manned.org/vncviewer>.
+
+- Launch a VNC client which connects to a host on a given display:
+
+`vncviewer {{host}}:{{display_number}}`
+
+- Launch in full-screen mode:
+
+`vncviewer -FullScreen {{host}}:{{display_number}}`
+
+- Launch a VNC client with a specific screen geometry:
+
+`vncviewer --geometry {{width}}x{{height}} {{host}}:{{display_number}}`
+
+- Launch a VNC client which connects to a host on a given port:
+
+`vncviewer {{host}}::{{port}}`