Update cheatsheets

osx/scutil

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+---
+syntax: markdown
+tags: [tldr, osx]
+source: https://github.com/tldr-pages/tldr.git
+---
+# scutil
+
+> Manage system configuration parameters.
+> Necessitates to be root when setting configuration.
+> More information: <https://keith.github.io/xcode-man-pages/scutil.8.html>.
+
+- Display DNS Configuration:
+
+`scutil --dns`
+
+- Display proxy configuration:
+
+`scutil --proxy`
+
+- Get computer name:
+
+`scutil --get ComputerName`
+
+- Set computer name:
+
+`sudo scutil --set ComputerName {{computer_name}}`
+
+- Get hostname:
+
+`scutil --get HostName`
+
+- Set hostname:
+
+`scutil --set HostName {{hostname}}`