Easy setup for Ubuntu background image

README.md

Simple Background Image Changer Script for Linux

This script uses gsettings to set the gnome.background of the current user.

setbg.sh vers. 1.5

You can use it as a standalone script to set the background image or you can even add this script to your .bash_aliases so that you can use the simple setbg-alias for the script.

setbg.sh vers. 2.3 [recommended]

You can use it as a standalone script to set the background image or you can even install this script to your binary folder so that you can use the simple setbg-command for the script.

setbg.sh

#!/bin/bash
# @author     Mansour Yaacoubi
# @filename   setbg.sh
# @version    2.3
# @task       Sets background in Ubuntu and some other Linux versions
# @feature    When this script runs as superuser,
#             the command 'setbg' can be installed into /bin directory
# @timestamp  12:23 07.06.2017
# @usage      ./setbg.sh wallpaper.jpg
#             su $USER -c setbg.sh wallpaper.jpg
#             setbg wallpaper.jpg (after script was installed)

boldcmd="\033[1msetbg\033[0m"
bin=/bin/setbg
TMP=/tmp
tmpscript=$TMP/$(basename $0)
# Check whether help option is chosen
if [ "$1" == "--help" ] || [ "$1" == "-h" ]; then
  echo "Usage: setbg [OPTION] [FILE]"
  if [ ! -f $bin ]; then echo "Example: sudo $0 -i"; fi;
  echo "Example: setbg wallpaper.jpg"
  echo "Sets background of current user. Expects wallpaper-image as first argument."
  if [ ! -f $bin ]; then echo "Install-option needs root-privileges."; fi;
  echo ""
  
  echo "Mandatory arguments to long options are mandatory for short options too."
  echo -e "\\t-h, --help\\t\\tprints this help text"
  if [ ! -f $bin ]; then echo -e "\\t-i, --install\\t\\tinstalls this script; needs to run as sudo"; fi;
  exit
# Check whether install option is chosen
elif [ "$1" == "--install" ] || [ "$1" == "-i" ]; then
	if [ -f $bin ]; then
		echo "Command has already been installed."
		exit
	fi
  if [ "$UID" -ne 0 ]; then
    echo -e "To install this script ($boldcmd), please run as superuser."
    echo -e "To install, run script like this:\\n"
    echo "sudo $0 $1"
    exit
  fi
  echo -e "Command $boldcmd will be installed..."
# Check whether argument is empty or file does not exists
elif [ -z "$1" ] || [ ! -f "$1" ] && [ "$1" != "install" ]; then
  echo "Please provide a valid image-file"
  exit
# Set background or warn to use normal user
else
  if [ "$UID" -eq 0 ]; then
    echo "Please don't run as root to set background."
    echo -e "Run script like this:\\n"
    if [ -f $bin ]; then echo "$(basename $0) $1"; exit; fi;             
    echo "$0 $1"
	exit
  else
    # GSettings cannot run with 'sudo' but with 'su $USER -c'
    gsettings set org.gnome.desktop.background picture-uri file://$(readlink -f $1)
	exit
  fi
fi

############################ SUPERUSER AREA ############################
# Everything below this text will be executed with elevated privileges #
########################################################################

cp $0 $TMP
chmod +rx $tmpscript
cp $tmpscript $bin
if [ $? -eq 0 ]; then
  echo -e "Command $boldcmd has been installed."
  rm $tmpscript
else
  echo -e "To install this script ($boldcmd), please run as superuser.\\nTo install, run script like this:\\n\\nsudo $0 $1"
fi

setbgV1.sh

#!/bin/bash
# @author     Mansour Yaacoubi
# @filename   setbg.sh
# @version    1.5
# @task       Sets background in Ubuntu and some other Linux versions
# @feature    When this script runs as superuser,
#             the command 'setbg' can be added to your aliases
# @timestamp  12:23 07.06.2017
# @usage      ./setbg.sh wallpaper.jpg
#             su $USER -c setbg.sh wallpaper.jpg
#             setbg wallpaper.jpg (after script was added to .bash_aliases)

boldcmd="\033[1msetbg\033[0m"
# Check whether help option is chosen
if [ "$1" == "--help" ] || [ "$1" == "-h" ]; then
  echo "Usage: setbg [OPTION] [FILE]"
  echo "Example: sudo $0 -i"
  echo "Example: setbg wallpaper.jpg"
  echo -e "Sets background of current user. Expects install-option or wallpaper-image as first argument. Install-option needs root-privileges to edit .bash_aliases file.\\n"
  
  echo "Mandatory arguments to long options are mandatory for short options too."
  echo -e "\\t-h, --help\\t\\tprints this help text"
  echo -e "\\t-i, --install\\t\\tinstalls this script; needs to run as sudo"
  exit
# Check whether install option is chosen
elif [ "$1" == "--install" ] || [ "$1" == "-i" ]; then
  if [ "$UID" -ne 0 ]; then
    echo -e "To add this script to your commands ($boldcmd), please run as superuser."
	echo -e "To install, run script like this:\\n"
	echo "sudo $0 $1"
    exit
  fi
  echo -e "Command $boldcmd will be added to .bash_aliases..."
# Check whether argument is empty or file does not exists
elif [ -z "$1" ] || [ ! -f "$1" ] && [ "$1" != "install" ]; then
  echo "Please provide a valid image-file"
  exit
# Set background or warn to use normal user
else
  if [ "$UID" -eq 0 ]; then
    echo "Please don't run as root to set background."
    echo -e "Run script like this:\\n"
    echo "$0 $1"
	exit
  else
    # GSettings cannot run with 'sudo' but with 'su $USER -c'
    gsettings set org.gnome.desktop.background picture-uri file://$(readlink -f $1)
	exit
  fi
fi

echo "alias setbg='$(readlink -f $0)'">>$HOME/.bash_aliases; if [ $? -eq 0 ]; then cp $0 $0.tmp; sed '$ d' $0.tmp > $0; rm -f $0.tmp; echo "echo \"Command has already been installed.\"" >> $0; echo -e "Command $boldcmd has been added.\n\nPlease restart terminal."; else echo -e "To add this script to your commands ($boldcmd), please run as superuser.\\nTo install, run script like this:\\n\\nsudo $0 $1"; fi