NAME
fbgrab - takes a screenshot using the framebuffer device
SYNOPSIS
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fbgrab [option...] png-file |
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fbgrab -? |
DESCRIPTION
fbgrab is a wrapper around fbcat which emulates the behaviour of Gunnar Monell's fbgrab utility.
OPTIONS
fbgrab accepts the following options:
-c N
Grab the /dev/ttyN virtual terminal.
Note
This option might require root privileges (or
CAP_SYS_TTY_CONFIG capability).
-C N
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).
-d fb-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.
-s N
Sleep N seconds before making the screenshot or switching virtual terminals.
-?
Display help and exit.
Specify png-file as “-” to write to standard output.
UNSUPPORTED OPTIONS
The following options of Gunnar Monell's fbgrab are recognized but not supported:
-f fb-dump-file
-b N
-w N
-h N
SEE ALSO
png(5), fbcat(1)