feh.pre

for Ctrl+Alt+Delete
.Pc
.
.Pp
.
Available modifiers are
.Ar C No for Control ,
.Ar S No for Shift and
.Ar 1 , 4 No for Mod1 and Mod4 .
To match an uppercase letter like
.Qq S
instead of
.Qq s ,
the Shift modifier is not required.
.
.Pp
.
Specifying an
.Ar action
without any keys unbinds it (i.e. the default bindings are removed).
.
.Pp
.
.Em Note :
Do not use the same keybinding for multiple actions.
.Nm
does not check for conflicting bindings, so their behaviour is undefined.
.
Either unbind the unwanted action, or bind it to another unused key.
.
The order in which you bind / unbind does not matter, though.
.
.Pp
.
For a list of the
.Ar action
names, see
.Sx KEYS .
.
.
.Sh KEYS
.
In an image window, the following keys may be used
.Pq The strings in Bo square brackets Bc are the config action names :
.
.Bl -tag -width indent
.
.It a Bq toggle_actions
.
Toggle actions display
.Pq see Cm --draw-actions
.
.It A Bq toggle_aliasing
.
Enable/Disable anti-aliasing
.
.It c Bq toggle_caption
.
Caption entry mode.  If
.Cm --caption-path
has been specified, then this enables caption editing.  The caption at the
bottom of the screen will turn yellow and can be edited.  Hit return to confirm
and save the caption, or escape to cancel editing.  Note that you can insert
an actual newline into the caption using
.Aq CTRL+return .
.
.It d Bq toggle_filenames
.
Toggle filename display
.Pq see Cm --draw-filename
.
.It e Bq toggle_exif
.
.Pq only if compiled with exif=1
Toggle EXIF tag display
.
.It f Bq save_filelist
.
Save the current filelist as
.Qq feh_PID_ID_filelist
.
.It h Bq toggle_pause
.
Pause/Continue the slideshow.  When it is paused, it will not automatically
change slides based on
.Cm --slideshow-delay .
.
.It i Bq toggle_info
.
Toggle info display
.Pq see Cm --info
.
.It k Bq toggle_keep_vp
.
Toggle zoom and viewport keeping. When enabled,
.Nm
will keep zoom and X, Y offset when switching images.
.
.It m Bq toggle_menu
.
Show menu.  Use the arrow keys and return to select items,
.Aq escape
to close the menu.
.
.It n , Ao Space Ac , Ao Right Ac Bq next_img
.
Show next image
.
.It o Bq toggle_pointer
.
Toggle pointer visibility
.
.It p , Ao Backspace Ac , Ao Left Ac Bq prev_img
.
Show previous image
.
.It q , Ao Escape Ac Bq quit
.
Quit
.Nm
.
.It r Bq reload_image
.
Reload current image.  Useful for webcams
.
.It s Bq save_image
.
Save the current image as
.Qq feh_PID_ID_FILENAME
.
.It v Bq toggle_fullscreen
.
Toggle fullscreen
.
.It w Bq size_to_image
.
Change window size to fit current image size
.
.It x Bq close
.
Close current window
.
.It z Bq jump_random
.
Jump to a random position in the current filelist
.
.It < , > Bq orient_3 , orient_1
.
In place editing - rotate the images 90 degrees (counter)clockwise.
The rotation is lossless, but may create artifacts in some image corners when
used with JPEG images.  Rotating in the reverse direction will make them go
away.  See
.Xr jpegtran 1
for more about lossless JPEG rotation.
.
.Em Note:
jpegtran does not update EXIF orientation tags. However,
.Nm
assumes that you use the feature to normalize image orientation and want it to
be displayed this way everywhere. After every rotation, it will unconditionally
set the EXIF orientation to 1
.Pq Qq 0,0 is top left .
Should you need to reverse this, see
.Xr jpegexiforient 1 .
.
.It _ Bq flip
.
In place editing - vertical flip
.
.It | Bq mirror
.
In place editing - horizontal flip.
Again, see
.Xr jpegtran 1
for more information.
.
.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 by 1 second
.
.It - Bq reload_minus
.
Decrease reload delay by 1 second
.
.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 Aq Alt+Left Bq scroll_left_page
.
Scroll to the left by one page
.
.It Aq Alt+Right Bq scroll_right_page
.
Scroll to the right by one page
.
.It Aq Alt+Up Bq scroll_up_page
.
Scroll up by one page
.
.It Aq Alt+Down Bq scroll_down_page
.
Scroll down by one page
.
.It R, 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
.Nm
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 BUTTONS CONFIG SYNTAX
.
.Pa .config/feh/buttons .
This works like the keys config file: the entries are of the form
.Qq Ar action Op Ar binding .
.
.Pp
.
Each
.Ar binding
is a button name.  It may optionally start with modifiers for things like
Control, in which case
.Ar binding
looks like
.Ar mod Ns No - Ns Ar button
.Pq for example "C-1" for Ctrl + Left button .
.
.Pp
.
.Em Note :
Do not use the same button for multiple actions.
.Nm
does not check for conflicting bindings, so their behaviour is undefined.
.
Either unbind the unwanted action, or bind it to another unused button.
.
The order in which you bind / unbind does not matter, though.
.
.Pp
.
For the available modifiers, see
.Sx KEYS CONFIGURATION SYNTAX .
.
.
.Ss BUTTONS
.
In an image window, the following buttons may be used
.Pq The strings in Bo square brackets Bc are the config action names :
.
.Bl -tag -width indent
.
.It Bq reload
.
Reload current image
.
.It 1 Ao left mouse button Ac Bq pan
.
pan the current image
.
.It 2 Ao middle mouse button Ac Bq zoom
.
Zoom the current image
.
.It 3 Ao right mouse button Ac Bq menu
.
Toggle menu
.
.It 4 Ao mousewheel down Ac Bq prev
.
Show previous image
.
.It 5 Ao mousewheel up Ac Bq next
.
Show next image
.
.It Ctrl+1 Bq blur
.
Blur current image
.
.It Ctrl+2 Bq rotate
.
Rotate current image
.
.It unbound Bq zoom_in
.
Zoom in
.
.It unbound Bq zoom_out
.
Zoom out
.
.
.El
.
.
.Sh MOUSE ACTIONS
.
Default Bindings:
When viewing an image, mouse button 1 pans the image
.Pq moves it around
or, when only clicked, moves to the next image
.Pq slideshow mode only .
Quick drags with less than 2px of movement per axis will be treated as clicks
to aid graphics tablet users.
.
Mouse 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. See also:
.Aq http://feh.finalrewind.org/examples/
.
.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 -f by_width -S width --reverse --list \&.
.
Write a list of all images in the directory to by_width, sorted by width
.Pq widest images first
.
.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
.
.It feh --action 'rm %F' -rl --max-dim 1000x800
.
Resursively remove all images with dimensions below or equal to 1000x800 pixels
from the current directory.
.
.El
.
.
.Sh TILING WINDOW MANAGERS
.
.Nm
was created with a floating window layout in mind.  However, as of 2.0.1, it
has limited support for tiling window managers.
.
.Pp
.
Specifically, the
.Cm --scale-down No and Cm --auto-zoom
options will detect a tiling environment and scale the image up / down to the
current window size.  Unfortunately, this causes every image to be rendered
twice: First in a normal fashion, and then
.Pq after noticing that the window is being tiled
again with the correct zoom level.
.
.Pp
.
This is a known bug and will hopefully get fixed some time. For now, it can be
avoided by using
.Cm --geometry 500x500 Pq or any other geometry .
This will have the same behaviour as
.Cm --scale-down ,
but without the flickering.
.
.
.Sh DEPENDENCIES
.
.Nm
requires the
.Cm jpegtran
and
.Cm jpegexiforient
binaries
.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
.
.Pp
.
Thumbnail mode is somewhat inefficient, and because of that not nearly as fast
as it could be.
.
.Pp
.
.Cm --scale-down
does not take window decorations into account and may therefore make the
window slightly too large.
.
.
.Ss REPORTING BUGS
.
If you find a bug, please report it to
.Aq derf+feh@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