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Linux Mint login background changer. Changes the background image on the Linux Mint theme login screen. To run automatically at each reboot, run this script as: sudo bash loginimage.sh -r. Put the command in /etc/rc.local
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| #!/bin/bash | |
| appPath=/usr/share/login-image-changer | |
| settingsPath=$appPath/settings.conf | |
| rcLocalPath="/etc/rc.local" | |
| scriptPath="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )" | |
| runCommand="sudo bash \"$scriptPath/loginimage.sh\" -r" | |
| settingsExists=0 | |
| install=0 | |
| uninstall=0 | |
| run=0 | |
| sourcePath="none" | |
| destPath="none" | |
| echo "Login Image Changer v1.0 (http://www.dummysoftware.com)" | |
| echo "" | |
| # Check command-line arguments. | |
| if [ $1 ] | |
| then | |
| if [ $1 = "--install" ] || [ $1 = "-i" ] | |
| then | |
| install=1 | |
| elif [ $1 = "--uninstall" ] || [ $1 = "-u" ] | |
| then | |
| uninstall=1 | |
| elif [ $1 = "--run" ] || [ $1 = "-r" ] | |
| then | |
| run=1 | |
| else | |
| echo "-h, --help Help" | |
| echo "-r, --run Run login image changer and change background image" | |
| echo "-i, --install Install or change existing settings" | |
| echo "-u, --uninstall Uninstall" | |
| exit | |
| fi | |
| fi | |
| # Ensure running as root. | |
| if [ "$EUID" -ne 0 ] | |
| then | |
| echo "Please run as root: sudo bash loginimage.sh" | |
| else | |
| # Check if the settings file exists. | |
| if [ -f "$settingsPath" ] | |
| then | |
| settingsExists=1 | |
| # Read settings from config file. | |
| exec 6< "$settingsPath" | |
| read sourcePath <&6 | |
| read destPath <&6 | |
| exec 6<&- | |
| fi | |
| if [ $uninstall = 1 ] | |
| then | |
| if [ "$sourcePath" = "none" ] || [ "$destPath" = "none" ] | |
| then | |
| echo "Nothing to uninstall." | |
| else | |
| echo "Uninstalling" | |
| backupFile=$(basename "$destPath") | |
| echo "Restoring backup of $appPath/$backupFile to $destPath" | |
| mv -f "$appPath"/"$backupFile" "$destPath" | |
| echo "Removing run command from $rcLocalPath" | |
| sed -i '/loginimage\.sh/d' "$rcLocalPath" | |
| echo "Removing folder $appPath" | |
| rm -r -f "$appPath" | |
| echo "Uninstall complete!" | |
| fi | |
| elif ([ $settingsExists = 0 ] || [ $install = 1 ]) && [ $run = 0 ] | |
| then | |
| # The user specified --install or no settings exist yet. | |
| # Show dialog to choose new folder paths. | |
| zenity --forms --title="Login Image Changer" --text="Welcome to Login Image Changer\nhttp://www.dummysoftware.com\n\nAutomatically changes the login background image each time your PC starts up.\n\nPictures Folder: $sourcePath\nBackground Image to Change: $destPath\n\nWould you like to setup a random login background image?" | |
| result=$? | |
| if [ $result = 0 ] | |
| then | |
| sourcePath=$(zenity --file-selection --directory --title="Select a folder containing images") | |
| result=$? | |
| if [ $result = 0 ] | |
| then | |
| # We have the source folder for images. Now, get the destination background image filename to overwrite. | |
| origDestPath="$destPath" | |
| destPath=$(zenity --file-selection --title="Select the background image to overwrite from your installed Login Window Theme") | |
| result=$? | |
| if [ $result = 0 ] | |
| then | |
| echo "" | |
| # Restore any previous settings. | |
| if [ "$origDestPath" != "none" ] | |
| then | |
| # Previously saved settings. Restore backup file, then overwrite with new changes. | |
| backupFile=$(basename "$origDestPath") | |
| echo "Restoring backup of $appPath/$backupFile to $origDestPath" | |
| mv -f "$appPath"/"$backupFile" "$origDestPath" | |
| fi | |
| # Save new settings. | |
| # Create directories (-p to ignore file exists errors). | |
| mkdir -p "$appPath" | |
| # Write first line of file. | |
| echo "$sourcePath" > "$settingsPath" | |
| # Append second line to file. | |
| echo "$destPath" >> "$settingsPath" | |
| echo "Configuration saved to $settingsPath" | |
| # Make a backup of the destination file. | |
| cp -f "$destPath" "$appPath" | |
| echo "Created a backup copy of $destPath to $appPath" | |
| # Append entry to /etc/rc.local to run at startup. | |
| if grep -q loginimage "$rcLocalPath" | |
| then | |
| echo "loginimage.sh is already installed in $rcLocalPath." | |
| else | |
| sed -i '$i \'"$runCommand"'\n' "$rcLocalPath" | |
| echo "Run command appened to $rcLocalPath" | |
| fi | |
| echo "Successfully saved!" | |
| echo "To see changes, reboot or manually run: sudo bash loginimage.sh" | |
| fi | |
| fi | |
| fi | |
| else | |
| if [ "$sourcePath" = "none" ] || [ "$destPath" = "none" ] | |
| then | |
| echo "No configuration settings found. Please run: sudo bash loginimage.sh -i" | |
| else | |
| # Run randomization script. | |
| files=("$sourcePath"/*) #creates an array of all the files within src/ */ | |
| filecount="${#files[@]}" #determines the length of the array | |
| if [ filecount > 0 ] | |
| then | |
| randomid=$((RANDOM % filecount)) #uses $RANDOM to choose a random number between 0 and $filecount | |
| filetomove="${files[$randomid]}" #the random file wich we'll move | |
| # Disable case-sensitive regex matching. | |
| shopt -s nocasematch; | |
| if [[ $filetomove =~ jpg ]] || [[ $filetomove =~ png ]] || [[ $filetomove =~ gif ]] | |
| then | |
| echo "Using source folder: $sourcePath" | |
| echo "Selected random image $filetomove" | |
| echo "Copying to destination: $destPath" | |
| cp "$filetomove" "$destPath" | |
| else | |
| echo "No images (.jpg, .gif, .png) found in $sourcePath" | |
| echo "Please select a different folder for images: sudo bash loginimage.sh -i" | |
| fi | |
| fi | |
| fi | |
| fi | |
| fi |
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