2020-05-26 03:17:46 +00:00
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---
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title: "TCP/UDP with Bash"
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date: 2020-05-25T23:10:15-04:00
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draft: false
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2022-01-02 19:24:29 +00:00
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tags: ["Bash", "Networking"]
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2023-01-05 19:04:45 +00:00
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medium_enabled: true
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2020-05-26 03:17:46 +00:00
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---
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The bash shell contains pseudo-devices to send packets with TCP/UDP. The pseudo files are formatted like the following:
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```
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dev/tcp/HOST/PORT
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/dev/udp/HOST/PORT
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```
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To send a UDP packet to `localhost:6300` containing the payload "Hello, World.", we would run the following command:
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```bash
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echo "Hello, World." > /dev/udp/127.0.0.1/6300
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```
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