pwn: add page (#12352)

* pwn: add page

---------

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>
Co-authored-by: Fazle Arefin <fazlearefin@users.noreply.github.com>

pages/linux/pwn.md

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+# pwn
+
+> Exploit Development Library designed for rapid prototyping.
+> More information: <https://docs.pwntools.com/en/stable/commandline.html>.
+
+- Convert  the given assembly code to `bytes`:
+
+`pwn asm "{{xor edi, edi}}"`
+
+- Create a cyclic pattern of the specific number of characters:
+
+`pwn cyclic {{number}}`
+
+- Encode the given data into the hexadecimal system:
+
+`pwn hex {{deafbeef}}`
+
+- Decode the given data from hexadecimal:
+
+`pwn unhex {{6c4f7645}}`
+
+- Print a x64 Linux shellcode for running a shell:
+
+`pwn shellcraft {{amd64.linux.sh}}`
+
+- Check the binary security settings for the given ELF file:
+
+`pwn checksec {{path/to/file}}`
+
+- Check for Pwntools updates:
+
+`pwn update`
+
+- Display version:
+
+`pwn version`