Update cheatsheets

linux/resolveip

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# resolveip
+
+> Resolve hostnames to their IP addresses and vice versa.
+> More information: <https://mariadb.com/kb/en/resolveip/>.
+
+- Resolve a hostname to an IP address:
+
+`resolveip {{example.org}}`
+
+- Resolve an IP address to a hostname:
+
+`resolveip {{1.1.1.1}}`
+
+- Silent mode. Produces less output:
+
+`resolveip --silent {{example.org}}`