update folder name for my-threejs-journey repo

rename.sh

#!/bin/bash

# Target starting number for renaming (start at 64)
start_number=64

# Iterate through folders in reverse, starting with folder number 51
for i in {51..32}; do
  old_name="${i}-"  # Build the old folder name pattern

  # Check if the folder exists
  if [ -d "$old_name"* ]; then
      folder_base_name=$(basename "$old_name"*)  # Get just the base folder name
      folder_base_name="${folder_base_name#*-}" # Remove the old number prefix 
      new_name="${start_number}-${folder_base_name}"  # Build the new name 
      mv "$old_name"* "$new_name"  # Perform the renaming
      echo "Renamed $old_name to $new_name"
      ((start_number--))  # Decrement the target number
  fi
done

• chmod +x rename.sh
• ./rename.sh