feh.pre

for more about lossless JPEG rotation.
.
.It 0 .. 9 Bq action_0 .. action_9
.
Execute the corresponding action
.Pq 0 = Cm --action , No 1 = Cm --action1 No etc.
.
.It Ao Return Ac Bq action_0
.
Run the command defined by
.Cm --action
.
.It Ao home Ac Bq jump_first
.
Show first image
.
.It Ao end Ac Bq jump_last
.
Show last image
.
.It Ao page up Ac Bq jump_fwd
.
Go forward ~5% of the filelist
.
.It Ao page down Ac Bq jump_back
.
Go backward ~5% of the filelist
.
.It + Bq reload_plus
.
Increase reload delay
.
.It - Bq reload_minus
.
Decrease reload delay
.
.It Ao delete Ac Bq remove
.
Remove current file from filelist
.
.It Ao CTRL+delete Ac Bq delete
.
Remove current file from filelist and delete it
.
.It Ao keypad left Ac , Ao Ctrl+Left Ac Bq scroll_left
.
Scroll to the left
.
.It Ao keypad right Ac , Ao Ctrl+Right Ac Bq scroll_right
.
Scroll to the right
.
.It Ao keypad up Ac , Ao Ctrl+Up Ac Bq scroll_up
.
Scroll up
.
.It Ao keypad down Ac , Ao Ctrl+Down Ac Bq scroll_down
.
Scroll down.
Note that the scroll keys work without anti-aliasing for performance reasons,
hit the render key after scrolling to antialias the image.
.
.It Ao keypad begin Ac Bq render
.
Antialias the image
.
.It Ao keypad + Ac , Ao Up Ac Bq zoom_in
.
Zoom in
.
.It Ao keypad - Ac , Ao Down Ac Bq zoom_out
.
Zoom out
.
.It Ao keypad * Ac Bq zoom_default
.
Zoom to 100%
.
.It Ao keypad / Ac Bq zoom_fit
.
Zoom to fit the window size
.
.El
.
.Ss MENU KEYS
.
The following keys bindings are used for the feh menu:
.
.Bl -tag -width indent
.
.It Ao Escape Ac Bq menu_close
.
Close the menu
.
.It Ao Up Ac Bq menu_up
.
Highlight previous menu item
.
.It Ao Down Ac Bq menu_down
.
Highlight next menu item
.
.It Ao Left Ac Bq menu_parent
.
Highlight parent menu item
.
.It Ao Right Ac Bq menu_child
.
Highlight child menu item
.
.It Ao Return Ac , Ao Space Ac Bq menu_select
.
Select highlighted menu item
.
.El
.
.
.Sh MOUSE ACTIONS
.
When viewing an image, by default mouse button 1 pans
.Pq moves the image around
or, when only clicked, moves to the next image
.Pq slideshow mode only ;
button 2 zooms
.Po click and drag left->right to zoom in, right->left to zoom out, click once
to restore zoom to 100%
.Pc ;
and mouse button 3 opens the menu.
.
.Pp
.
CTRL+Button 1 blurs or sharpens the image
.Pq drag left to blur, right to sharpen ;
CTRL+Button 2 rotates the image around the center point.
.
.Pp
.
A note about pan and zoom modes:
In pan mode, if you reach a window border but haven't yet panned to the end of
the image,
.Nm
will warp your cursor to the opposite border so you can continue panning.
.
.Pp
.
When clicking the zoom button and immediately releasing it, the image will be
back at 100% zoom.  When clicking it and moving the mouse while holding the
button down, the zoom will be continued at the previous zoom level.  The zoom
will always happen so that the pixel on which you entered the zoom mode
remains stationary.  So, to enlarge a specific part of an image, click the
zoom button on that part.
.
.
.Sh SIGNALS
.
In slideshow mode,
.Nm
handles the following signals:
.
.Bl -tag -width indent
.
.It Dv SIGUSR1
.
Switch to next image
.
.It Dv SIGUSR2
.
Switch to previous image
.
.El
.
.
.Sh USAGE EXAMPLES
.
Here are some examples of useful option combinations
.
.Bl -tag -width indent
.
.It feh /opt/images
.
Show all images in /opt/images
.
.It feh -r /opt/images
.
Recursively show all images found in /opt/images and subdirectories
.
.It feh -rSfilename /opt/images
.
Same as above, but sort by filename. By default, feh will show files in the
order it finds them on the hard disk, which is usually somewhat random.
.
.It feh -t -Sfilename -E 128 -y 128 -W 1024 /opt/images
.
Show 128x128 pixel thumbnails, limit window width to 1024 pixels.
.
.It feh -t -Sfilename -E 128 -y 128 -W 1024 -P -C /usr/share/fonts/truetype/ttf-dejavu/ -e DejaVuSans/8 /opt/images
.
Same as above, but enable thumbnail caching in ~/.thumbnails and use a smaller
font.
.
.It feh -irFarial/14 -O index.jpg /opt/images
.
Make an index print of /opt/images and all directories below it, using 14 point
Arial to write the image info under each thumbnail.  Save the image as
index.jpg and don't display it, just exit.  Note that this even works without
a running X server
.
.It feh --unloadable -r /opt/images
.
Print all unloadable images in /opt/images, recursively
.
.It feh -w /opt/images/holidays
.
Open each image in /opt/images/holidays in its own window
.
.It feh -FD5 -Sname /opt/images/presentation
.
Show the images in .../presentation, sorted by name, in fullscreen,
automatically change to the next image after 5 seconds
.
.It feh -rSwidth -A Qo mv '%f' ~/images/'%n' Qc /opt/images
.
View all images in /opt/images and below, sorted by width, move an image to
~/image/image_name when enter is pressed
.
.It feh --start-at ./foo.jpg \&.
.
View all images in the current directory, starting with foo.jpg.  All other
images are still in the slideshow and can be viewed normally
.
.It feh --start-at foo.jpg *
.
Same as above
.
.It feh --info \&"exifgrep '\&(Model\&|DateTimeOriginal\&|FNumber\&|ISO\&|Flash\&)' '%f' \&| cut -d \&. -f 4-\&" \&.
.
Show some EXIF information, extracted by exifprobe/exifgrep
.
.El
.
.
.Sh DEPENDENCIES
.
.Nm
requires the
.Cm jpegtran
binary
.Pq usually distributed in Qo libjpeg-progs Qc or similar
for lossless rotation.
.
.Pp
.
To view images from URLs such as http://, you need
.Nm
compiled with libcurl support (enabled by default).  See the
.Sx VERSION
section.
.
.
.Sh BUGS
.
Xinerama support does not really work on Xinerama screens != 0.  Set
.Ev XINERAMA_SCREEN
to the correct number as a workaround.
.
.Pp
.
Thumbnail mode is somewhat inefficient, and because of that not nearly as fast
as it could be.
.
.
.Ss REPORTING BUGS
.
If you find a bug, please report it to
.Aq derf@finalrewind.org
or via
.Aq http://github.com/derf/feh/issues .
You are also welcome to direct any feh-related comments/questions/... to #feh
on irc.oftc.net.
.
.Pp
.
Please include the feh version
.Aq the output of Qq feh --version ,
steps to reproduce the bug and (if necessary), images to reproduce it.
.
.
.Sh FUTURE PLANS
.
Plans for the following releases:
.
.Bl -bullet -compact
.
.It
Make zoom options more intuitive
.
.El
.
.
.Sh LICENSE
.
Copyright (C) 1999, 2000 by Tom Gilbert (and various contributors).
Copyright (C) 2010 by Daniel Friesel (and even more contributors).
.
.Pp
.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to
deal in the Software without restriction, including without limitation the
rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
.
.Pp
.
The above copyright notice and this permission notice shall be included in
all copies of the Software and its documentation and acknowledgment shall be
given in the documentation and software packages that this Software was
used.
.
.Pp
.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
.
.Pp
.
Current developer: Daniel Friesel
.Aq derf@finalrewind.org
.
.Pp
.
Original author
.Pq no longer developing :
Tom Gilbert
.Aq feh_sucks@linuxbrit.co.uk
.
.Pp
.
See also:
http://feh.finalrewind.org