How to properly use CURL POST with file input? Need help! or What's the correct syntax for CURL POST

Dude, I had the same issue last week! Turns out my file path was wrong. Double-check that `test.txt` is in the same dir as where you're running CURL.

Also, some servers freak out if you don’t include `-F "filename=test.txt"` alongside the file. Weird, but worth a shot.