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i'm doing a motion (streaming webcam content) project and i want to know how can i take a snapshot with a terminal command.

wget http://localhost:8080/?action=snapshot -O output.jpg

This does not seem to work properly. It outputs a jpg, but it just keeps downloading forever. Is there any other command or is it not possible to take a snapshot on command (i'm using a button for this). Thank you!

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Try this. sudo apt-get install fswebcam to install it, then fswebcam image.jpg to snap a shot. There's a bunch of settings you can set to, like resolution.

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