TCP/UDP with Bash
Published on
Updated on
Warning: This post has not been modified
for over 2 years. For technical posts,
make sure that it is still relevant.
The bash shell contains pseudo-devices to send packets with TCP/UDP. The pseudo files are formatted like the following:
dev/tcp/HOST/PORT
/dev/udp/HOST/PORT
To send a UDP packet to localhost:6300 containing the payload “Hello, World.”, we would run the following command:
echo "Hello, World." > /dev/udp/127.0.0.1/6300