website/content/blog/bashtcpudp.md

---
title: "TCP/UDP with Bash"
date: 2020-05-25T23:10:15-04:00
draft: false
tags: ["Bash", "Networking"]
---

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:

```bash
echo "Hello, World." > /dev/udp/127.0.0.1/6300
```
New Post 2020-05-25 23:17:46 -04:00			`---`
			`title: "TCP/UDP with Bash"`
			`date: 2020-05-25T23:10:15-04:00`
			`draft: false`
Re-tagged blog posts 2022-01-02 14:24:29 -05:00			`tags: ["Bash", "Networking"]`
New Post 2020-05-25 23:17:46 -04:00			`---`

			`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:

			```bash
			`echo "Hello, World." > /dev/udp/127.0.0.1/6300`
			```