Update cheatsheets

linux/htpdate

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# htpdate
+
+> Synchronize local date and time via HTTP headers from web servers.
+> More information: <http://www.vervest.org/htp/>.
+
+- Synchronize date and time:
+
+`sudo htpdate {{host}}`
+
+- Perform simulation of synchronization, without any action:
+
+`htpdate -q {{host}}`
+
+- Compensate the systematic clock drift:
+
+`sudo htpdate -x {{host}}`
+
+- Set time immediate after the synchronization:
+
+`sudo htpdate -s {{host}}`