'\" t
.\"     Title: fbgrab
.\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 2017-08-16
.\"    Manual: fbgrab manual
.\"    Source: fbgrab 0.5.1
.\"  Language: English
.\"
.TH "FBGRAB" "1" "2017\-08\-16" "fbgrab 0\&.5\&.1" "fbgrab manual"
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.SH "NAME"
fbgrab \- takes a screenshot using the framebuffer device
.SH "SYNOPSIS"
.HP \w'\fBfbgrab\fR\ 'u
\fBfbgrab\fR [\fIoption\fR...] \fIpng\-file\fR
.HP \w'\fBfbgrab\fR\ 'u
\fBfbgrab\fR \fB\-?\fR
.SH "DESCRIPTION"
.PP
\fBfbgrab\fR
is a wrapper around
\fBfbcat\fR
which emulates the behaviour of Gunnar Monell\*(Aqs
\fBfbgrab\fR
utility\&.
.SH "OPTIONS"
.PP
\fBfbgrab\fR
accepts the following options:
.PP
\fB\-c \fR\fB\fIN\fR\fR
.RS 4
Grab the
/dev/ttyN
virtual terminal\&.
.if n \{\
.sp
.\}
.RS 4
.it 1 an-trap
.nr an-no-space-flag 1
.nr an-break-flag 1
.br
.ps +1
\fBNote\fR
.ps -1
.br
This option might require root privileges (or
\fICAP_SYS_TTY_CONFIG\fR
capability)\&.
.sp .5v
.RE
.RE
.PP
\fB\-C \fR\fB\fIN\fR\fR
.RS 4
Switch to the
/dev/ttyN
virtual terminal, then wait a few seconds before grabbing it\&.
.if n \{\
.sp
.\}
.RS 4
.it 1 an-trap
.nr an-no-space-flag 1
.nr an-break-flag 1
.br
.ps +1
\fBNote\fR
.ps -1
.br
This option might require root privileges (or
\fICAP_SYS_TTY_CONFIG\fR
capability)\&.
.sp .5v
.RE
.RE
.PP
\fB\-d \fR\fB\fIfb\-device\fR\fR
.RS 4
Use the
\fIfb\-device\fR
framebuffer device\&.
.sp
By default, the device name is taken from the
\fIFRAMEBUFFER\fR
environment variable\&. If it is unset or empty, the default is
/dev/fb0\&.
.RE
.PP
\fB\-i\fR
.RS 4
Enable PNG interlacing\&.
.RE
.PP
\fB\-s \fR\fB\fIN\fR\fR
.RS 4
Sleep
\fIN\fR
seconds before making the screenshot or switching virtual terminals\&.
.RE
.PP
\fB\-?\fR
.RS 4
Display help and exit\&.
.RE
.PP
Specify
\fIpng\-file\fR
as
\(lq\-\(rq
to write to standard output\&.
.SH "UNSUPPORTED OPTIONS"
.PP
The following options of Gunnar Monell\*(Aqs
\fBfbgrab\fR
are recognized but not supported:
.PP
\fB\-f \fR\fB\fIfb\-dump\-file\fR\fR
.RS 4
.RE
.PP
\fB\-b \fR\fB\fIN\fR\fR
.RS 4
.RE
.PP
\fB\-w \fR\fB\fIN\fR\fR
.RS 4
.RE
.PP
\fB\-h \fR\fB\fIN\fR\fR
.RS 4
.RE
.SH "SEE ALSO"
.PP
\fBpng\fR(5),
\fBfbcat\fR(1)