Find all images within a folder and recursively convert to webp and resize.

gistfile1.txt

#!/bin/bash

# Define the main images folder
main_images_folder="images"

# Define the desired width for the images
target_width=738

# Find and process all image files recursively
find "${main_images_folder}" -type f \( -iname "*.jpg" -o -iname "*.jpeg" -o -iname "*.png" -o -iname "*.gif" -o -iname "*.tif" -o -iname "*.tiff" -o -iname "*.bmp" -o -iname "*.webp" \) | while read file; do
    # Get the base name without extension
    base_name=$(basename "${file%.*}")
    # Get the directory of the current file
    dir_name=$(dirname "$file")
    
    # Create the target sub-directory inside 'list' if it doesn't exist
    mkdir -p "${dir_name}/list"

    # Check if the file is already a webp
    if [[ "$file" == *.webp ]]; then
        # Resize the webp image to target width with the aspect ratio maintained
        magick "$file" -resize "${target_width}" "${dir_name}/list/${base_name}.webp"
    else
        # Convert and resize the image to target width with the aspect ratio maintained
        magick "$file" -resize "${target_width}" "${dir_name}/list/${base_name}.webp"
    fi
done

Steps to Run the Script:

Create the Shell Script (.sh) File:

1. Open Terminal.
2. Navigate to a Directory: cd ~/Desktop
3. Create the Script File: nano process_images_recursive.sh
4. Paste the Script: Copy the updated script and paste it into nano. In nano, you can paste by right-clicking or using Command + V.
5. Save and Exit: In nano, save the file with Control + O, press Enter to confirm, then exit nano with Control + X.
6. Make the Script Executable: chmod +x process_images_recursive.sh
7. Run the Script: ./process_images_recursive.sh

Here’s how this might look in a terminal session:

Navigate to the Desktop
cd ~/Desktop

Create the script file
nano process_images_recursive.sh

Paste the script content into nano(Use Command + V to paste, or right-click)

Save and exit nano (Control + O, Enter, then Control + X)

Make the script executable
chmod +x process_images_recursive.sh

Run the script
./process_images_recursive.sh