Update cheatsheets

linux/netselect

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# netselect
+
+> Speed test for choosing a fast network server.
+> More information: <https://github.com/apenwarr/netselect>.
+
+- Choose the server with the lowest latency:
+
+`sudo netselect {{host_1}} {{host_2}}`
+
+- Display nameserver resolution and statistics:
+
+`sudo netselect -vv {{host_1}} {{host_2}}`
+
+- Define maximum TTL (time to live):
+
+`sudo netselect -m {{10}} {{host_1}} {{host_2}}`
+
+- Print fastest N servers among the hosts:
+
+`sudo netselect -s {{N}} {{host_1}} {{host_2}} {{host_3}}`
+
+- Display help:
+
+`netselect`