Via Raspberry Pi Spy.
If you are using your Pi to capture images using the camera it can be useful to display those images without launching a desktop environment. One of the ways of doing this is to use a utility called “fim”.
fim is based on an image viewer called “fbi” and stands for “Fbi IMproved”.
Note : It uses the system’s framebuffer to display images directly from the command line. For this reason it is best used when your Pi is directly connected to a monitor and keyboard.
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