fbi

FBI(1)                   Linux framebuffer imageviewer                  FBI(1)



NAME
       fbi - Linux framebuffer imageviewer

SYNOPSIS
       fbi [options] file ...

DESCRIPTION
       Fbi displays the specified file(s) on the linux console using the
       framebuffer device. PhotoCD, jpeg, ppm, gif, tiff, xpm, xwd, bmp, png
       and webp formats are supported natively. For other fbi tries to use
       ImageMagick(1)´s convert(1).

OPTIONS
       -h, --help
              Print usage info.

       -V, --version
              Print fbi version number.

       --store
              Write command line arguments to config file ~/.fbirc.

       -l file, --list file
              Read image filelist from file.

       -P, --text
              Enable textreading mode. In this mode fbi will display large
              images without vertical offset (default is to center the
              images). The SPACE command will first try to scroll down and go
              to the next image only if it is already on the bottom of the
              page. Useful if the images you are watching are text pages, all
              you have to do to get the next piece of text is to press
              space...

       -a, --autozoom
              Enable autozoom.  Fbi will automagically pick a reasonable zoom
              factor when loading a new image.

       --(no)autoup
              Like autozoom, but scale up only.

       --(no)autodown
              Like autozoom, but scale down only.

       --(no)fitwidth
              Use width only for autoscaling.

       -v, --(no)verbose
              Be verbose: enable status line on the bottom of the screen
              (enabled by default).

       -u, --(no)random
              Randomize the order of the filenames.

       --(no)comments
              Display comment tags (if present) instead of the filename.
              Probably only useful if you added reasonable comments yourself
              (using wrjpgcom(1) for example), otherwise you likely just find
              texts pointing to the software which created the image.

       -e, --(no)edit
              Enable editing commands.

       --(no)backup
              Create backup files (when editing images).

       -p, --(no)preserve
              Preserve timestamps (when editing images).

       --(no)readahead
              Read ahead images into cache.

       --cachemem size
              Image cache size in megabytes (default is 256).

       --blend time
              Image blend time in miliseconds.

       -T n, --vt n
              Start on virtual console n.

       -s steps, --scroll steps
              Set scroll steps in pixels (default is 50).

       -t sec, --timeout sec
              Start a continuous slideshow where each image is loaded at sec
              second intervals without any keypress.

       -1, --(no)once
              Don't loop (only use with -t).

       -r n, --resolution n
              Select resolution, n = 1..5 (default is 3, only PhotoCD).

       -g n, --gamma n
              Gamma correction. Requires Pseudocolor or Directcolor visual,
              doesn't work for Truecolor (default is 1).

       -f <arg>, --font <arg>
              Set font. This <arg> can be anything fontconfig accepts (see
              fonts-conf(5)).  Try fc-list(1) for a list of known fonts on
              your system. The fontconfig config file is evaluated as well, so
              any generic stuff defined there (such as mono, sans) will work
              as well. It is recommended to use monospaced fonts, the
              textboxes (help text, exif info) look better then.

       -d /dev/fbN, --device /dev/fbN
              Use /dev/fbN device framebuffer. Default is the one your virtual
              console is mapped to.

       -m videomode, --mode videomode
              Name of the video mode to use (video mode must be listed in
              /etc/fb.modes). Default is not to change the video mode.

ENVIRONMENT
       Fbi uses the following environment variables:

       FBGAMMA
              This variable may be used to specify a default gamma correction.

COMMAND USAGE
       The commands take effect immediately; it is not necessary to type a
       carriage return.

       In the following commands, i is a numerical argument.

   Scrolling
       LEFT_ARROW, RIGHT_ARROW, UP_ARROW, DOWN_ARROW
              Scroll large images.

       PREV_SCREEN, k
              Previous image.

       NEXT_SCREEN, SPACE, j
              Next image.

       ig     Jump to image #i.

       RETURN Write the filename of the current image to stdout(3), then go to
              the next image.

       The RETURN vs. SPACE key thing can be used to create a file list while
       reviewing the images and use the list for batch processing later on:

           fbi file1.gif file2.jpg file3.jpg > fileimagelist.lst

           some RETURN and SPACE...

           fbi -l fileimagelist.lst

   Zoom
       a      Autozoom.

       +      In.

       -      Out.

       is     Set zoom to i%.

   Other
       ESQ, q Quit.

       v      Toggle status line.

       h      Display textbox with brief help.

       i      Display textbox with some EXIF info.

       p      Pause the slideshow (if started with -t, toggle).

   Edit mode
       Fbi also provides some very basic image editing facilities. You have to
       start fbi with the -e switch to use them.

       D, Shift+d
              Delete image.

       r      Rotate 90 degrees clockwise.

       l      Rotate 90 degrees counter-clock wise.

       x      Mirror image vertically (top / bottom).

       y      Mirror image horizontally (left to right).

       The delete function actually wants a capital letter D, thus you have to
       type Shift+d. This is done to avoid deleting images by mistake because
       there are no safety bells: If you ask fbi to delete the image, it will
       be deleted without questions asked.

       The rotate function actually works for JPEG images only. It does a
       lossless transformation of the image.

BUGS
       Fbi needs rw access to the framebuffer devices (/dev/fbN), i.e you (our
       your admin) have to make sure fbi can open the devices in rw mode. The
       IMHO most elegant way is to use PAM(7) to chown the devices to the user
       logged in on the console. Another way is to create some group, chown
       the special files to that group and put the users which are allowed to
       use the framebuffer device into the group. You can also make the
       special files world writable, but be aware of the security implications
       this has. On a private box it might be fine to handle it this way
       though.

       Fbi also needs access to the linux console (/dev/ttyN) for sane console
       switch handling. That is obviously no problem for console logins, but
       any kind of a pseudo tty (xterm, ssh, screen, ...) will not work.

SEE ALSO
       convert(1), fbset(1), fc-list(1), imagemagick(1), wrjpgcom(1), fonts-
       conf(5), PAM(7)

AUTHOR
       Gerd Hoffmann <gerd@kraxel.org>

COPYRIGHT
       Copyright (c) 1999-2012 Gerd Hoffmann <gerd@kraxel.org>

       This program is free software; you can redistribute it and/or modify it
       under the terms of the GNU General Public License as published by the
       Free Software Foundation; either version 2 of the License, or (at your
       option) any later version.

       This program is distributed in the hope that it will be useful, but
       WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
       General Public License for more details.

       You should have received a copy of the GNU General Public License along
       with this program; if not, write to the Free Software Foundation, Inc.,
       675 Mass Ave, Cambridge, MA 02139, USA.



FBI 2.09                  (c) 1998-2012 Gerd Hoffmann                   FBI(1)