Feh

From ArchWiki
Revision as of 17:46, 1 February 2011 by Lavandero (Talk | contribs) (File Browser Image Launcher: bad offset oops)

Jump to: navigation, search

This template has only maintenance purposes. For linking to local translations please use interlanguage links, see Help:i18n#Interlanguage links.


Local languages: Català – Dansk – English – Español – Esperanto – Hrvatski – Indonesia – Italiano – Lietuviškai – Magyar – Nederlands – Norsk Bokmål – Polski – Português – Slovenský – Česky – Ελληνικά – Български – Русский – Српски – Українська – עברית – العربية – ไทย – 日本語 – 正體中文 – 简体中文 – 한국어


External languages (all articles in these languages should be moved to the external wiki): Deutsch – Français – Română – Suomi – Svenska – Tiếng Việt – Türkçe – فارسی

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

canon=$(readlink -f "$1")
file=$(basename "$canon")
dir=$(dirname "$canon")
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 images 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.

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.

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 &

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 "15m" 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 doesn't fork as much, but doesn't 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