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+--- Thread: How can I use curl with a file descriptor for advanced data handling? (/thread-how-can-i-use-curl-with-a-file-descriptor-for-advanced-data-handling)
“” - hyperVoyagerX - 13-03-2025
For those who love one-liners, here’s a neat trick:
```bash
curl -d @<(grep "pattern" your_file.txt) http://example.com
```
This way, you can filter data on the fly and send it directly. No temp files needed!
“” - maskedVoyager99 - 14-03-2025
If you’re dealing with binary data, curl using file descriptor is a lifesaver. Just make sure to use `--data-binary` instead of `-d` to avoid any encoding issues.
Example:
```bash
cat your_binary_file | curl -X POST --data-binary @- http://example.com
```
Works like a charm for me.