fbgrab - takes a screenshot using the framebuffer device

fbgrab is a wrapper around fbcat which emulates the behaviour of Gunnar Monell's fbgrab utility.

       fbgrab - takes a screenshot using the framebuffer device

fbgrab accepts the following options:

       -cN
           Grab the /dev/ttyN virtual terminal.

               Note
               This option might require root privileges (or CAP_SYS_TTY_CONFIG capability).

       -CN
           Switch to the /dev/ttyN virtual terminal, then wait a few seconds before grabbing it.

               Note
               This option might require root privileges (or CAP_SYS_TTY_CONFIG capability).

       -dfb-device
           Use the fb-device framebuffer device.

           By default, the device name is taken from the FRAMEBUFFER environment variable. If it is unset or
           empty, the default is /dev/fb0.

       -i
           Enable PNG interlacing.

       -sN
           Sleep N seconds before making the screenshot or switching virtual terminals.

       -?
           Display help and exit.

       Specify png-file as “-” to write to standard output.

png(5), fbcat(1)

fbgrab 0.5.1                                       2017-08-16                                          FBGRAB(1)

fbgrab [option...] png-filefbgrab-?

       The following options of Gunnar Monell's fbgrab are recognized but not supported:

       -ffb-dump-file-bN-wN-hN