fbi - Online in the Cloud

PROGRAM:

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.

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