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.