This is the command fbcat that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
fbcat - takes a screenshot using the framebuffer device
fbcat takes a screenshot using the framebuffer device. The produced image is in PPM
format. Note that redirection of standard output to a file or another process is needed
since fbcat will refuse to write it's output directly to the terminal.
Use fbcat online using onworks.net services