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35 lines
1.5 KiB
Markdown
35 lines
1.5 KiB
Markdown
---
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tags:
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- Bash
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- Netcat
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- File Transfer
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- Scripting
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- Linux
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---
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## Purpose
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You may find that you need to transfer a file, such as a public SSH key, or some other kind of file between two devices. In this scenario, we assume both devices have the `netcat` command available to them. By putting a network listener on the device recieving the file, then sending the file to that device's IP and port, you can successfully transfer data between computers without needing to set up SSH, FTP, or anything else to establish initial trust between the devices. [Original Reference Material](https://www.youtube.com/shorts/1j17UBGqSog).
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!!! warning
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The data being transferred will not be encrypted. If you are transferring relatively-safe files such as public SSH keys, etc, this should be fine.
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### Destination Computer
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Run the following command on the computer that will be recieving the file.
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```sh
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netcat -l <random-port> > /tmp/OUTPUT-AS-FILE.txt
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```
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### Source Computer
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Run the following command on the computer that will be sending the file to the destination computer.
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```sh
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cat INPUT-DATA.txt | netcat <IP-of-Destination-Computer> <Port-of-Destination-Computer> -q 0
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```
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!!! info
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The `-q 0` command argument causes the netcat connection to close itself automatically when the transfer is complete.
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## Related Documentation
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- [Related Files and Collaboration Documentation](<../../../reference/Applications/Files and Collaboration/index.md>) — Find the connected deployments, procedures, and references for this subject.
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