Difference between revisions of "Feh"

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m (In the "random background" script, the "-name '*.jpg' -o -name '*.png'" clause needs to be parenthesized; otherwise, "-print0" only applies to "-name '*.png'".)
(As a desktop wallpaper manager: added section on editing the background image via ~/.fehbg; removed some contractions and a pronoun; added xmonad to the list of WMs that feh works with)
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===As a desktop wallpaper manager===
 
===As a desktop wallpaper manager===
feh can be used to manage the desktop wallpaper for window managers that lack desktop features, such as [[Openbox]] and [[Fluxbox]].  
+
feh can be used to manage the desktop wallpaper for window managers that lack desktop features, such as [[Openbox]], [[Fluxbox]], and [[xmonad]].
  
 
When using [[GNOME]], you must disable Nautilus from controlling the desktop. The easiest way is to run this command:
 
When using [[GNOME]], you must disable Nautilus from controlling the desktop. The easiest way is to run this command:
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To restore the background on the next session, add the following to your startup file (e.g. {{Filename|~/.xinitrc}}, {{Filename|~/.config/openbox/autostart.sh}}, etc.):
 
To restore the background on the next session, add the following to your startup file (e.g. {{Filename|~/.xinitrc}}, {{Filename|~/.config/openbox/autostart.sh}}, etc.):
 
 
  sh ~/.fehbg &
 
  sh ~/.fehbg &
 +
 +
To change the background image, edit the file {{Filename|~/.fehbg}} which gets created after running the command {{Codeline|feh --bg-scale /path/to/image.file}} mentioned above.
  
 
====Random background image====
 
====Random background image====
 
To rotate the wallpaper randomly, create a script with the code below (e.g. {{Filename|wallpaper.sh}}). Make the script executable ({{Codeline|chmod +x wallpaper.sh}}) and call it from {{Filename|~/.xinitrc}}. You can also put the source directly in {{Filename|~/.xinitrc}} instead of in a separate file.
 
To rotate the wallpaper randomly, create a script with the code below (e.g. {{Filename|wallpaper.sh}}). Make the script executable ({{Codeline|chmod +x wallpaper.sh}}) and call it from {{Filename|~/.xinitrc}}. You can also put the source directly in {{Filename|~/.xinitrc}} instead of in a separate file.
  
Change the {{Filename|~/.wallpaper}} directory to fit your setup, and the "15m" delay as you please (see {{Codeline|man sleep}} for options).
+
Change the {{Filename|~/.wallpaper}} directory to fit your setup and the {{Codeline|15m}} delay as you please (see {{Codeline|man sleep}} for options).
 
<pre>
 
<pre>
 
#!/bin/sh
 
#!/bin/sh
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</pre>
 
</pre>
  
This version doesn't fork as much, but doesn't recurse through directories:
+
This version does not fork as much, but this version does not recurse through directories:
 
<pre>
 
<pre>
 
#!/bin/bash
 
#!/bin/bash

Revision as of 22:29, 5 September 2011

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feh is a lightweight and powerful image viewer that can also be used to manage the desktop wallpaper for standalone window managers lacking such features.

Installation

Template:Package Official is available in Extra:

# pacman -S feh

Usage

feh is highly configurable. For a full list of options, run Template:Codeline.

As an image viewer

To quickly browse images in a specific directory, you can launch feh with the following arguments:

$ feh -g 640x480 -d -S filename /path/to/directory
  • The -g flag forces the images to appear no larger than 640x480
  • The -S filename flag sorts the images by filename

This is just one example; there are many more options available should you desire more flexibility.

File Browser Image Launcher

The following script, originally posted on the forum, is useful for file browsers. It will display your selected image in feh, but it will enable you to browse all other images in the directory as well, in their default order, i.e. as if you had run "feh *" and cycled through to the selected image.

The script assumes the first argument is the filename.

#!/bin/bash

shopt -s nullglob

if [[ ! -f $1 ]]; then
	echo "$0: first argument is not a file" >&2
	exit 1
fi

file=$(basename -- "$1")
dir=$(dirname -- "$1")
arr=()
shift

cd -- "$dir"

for i in *; do
	[[ -f $i ]] || continue
	arr+=("$i")
	[[ $i == $file ]] && c=$((${#arr[@]} - 1))
done

exec feh "$@" -- "${arr[@]:c}" "${arr[@]:0:c}"

Invoke the script with the selected image's path, followed by any additional arguments to feh. Here is an example of a launcher that you can use in a file browser:

 /path/to/script %f -F -Z

"-F" and "-Z" are feh arguments. "-F" opens the image in fullscreen mode, and "-Z" autozooms the image. Adding the -q flag (quiet) suppresses error-messages to the terminal when feh tries loading non-image files in current folder.

As a desktop wallpaper manager

feh can be used to manage the desktop wallpaper for window managers that lack desktop features, such as Openbox, Fluxbox, and xmonad.

When using GNOME, you must disable Nautilus from controlling the desktop. The easiest way is to run this command:

$ gconftool-2 --set /apps/nautilus/preferences/show_desktop --type boolean false

The following command is an example of how to set the initial background:

$ feh --bg-scale /path/to/image.file

Other scaling options include:

--bg-tile FILE
--bg-center FILE
--bg-max FILE
--bg-fill FILE

To restore the background on the next session, add the following to your startup file (e.g. Template:Filename, Template:Filename, etc.):

sh ~/.fehbg &

To change the background image, edit the file Template:Filename which gets created after running the command Template:Codeline mentioned above.

Random background image

To rotate the wallpaper randomly, create a script with the code below (e.g. Template:Filename). Make the script executable (Template:Codeline) and call it from Template:Filename. You can also put the source directly in Template:Filename instead of in a separate file.

Change the Template:Filename directory to fit your setup and the Template:Codeline delay as you please (see Template:Codeline for options).

#!/bin/sh

while true; do
	find ~/.wallpaper -type f \( -name '*.jpg' -o -name '*.png' \) -print0 |
		shuf -n1 -z | xargs -0 feh --bg-scale
	sleep 15m
done

This version does not fork as much, but this version does not recurse through directories:

#!/bin/bash

shopt -s nullglob
 
cd ~/.wallpaper

while true; do
	files=()
	for i in *.jpg *.png; do
		[[ -f $i ]] && files+=("$i")
	done
	range=${#files[@]}

	((range)) && feh --bg-scale "${files[RANDOM % range]}"

	sleep 15m
done