Update cheatsheets

tldr/ipscan

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# ipscan
+
+> A fast network scanner designed to be simple to use.
+> Also known as Angry IP Scanner.
+> More information: <https://angryip.org/>.
+
+- Scan a specific IP address:
+
+`ipscan {{192.168.0.1}}`
+
+- Scan a range of IP addresses:
+
+`ipscan {{192.168.0.1-254}}`
+
+- Scan a range of IP addresses and save the results to a file:
+
+`ipscan {{192.168.0.1-254}} -o {{path/to/output.txt}}`
+
+- Scan IPs with a specific set of ports:
+
+`ipscan {{192.168.0.1-254}} -p {{80,443,22}}`
+
+- Scan with a delay between requests to avoid network congestion:
+
+`ipscan {{192.168.0.1-254}} -d {{200}}`
+
+- Display help:
+
+`ipscan --help`