diff --git a/300s School/300s School - README.md b/300s School/300s School - README.md
new file mode 100644
index 00000000..ab39cc9c
--- /dev/null
+++ b/300s School/300s School - README.md	
@@ -0,0 +1,17 @@
+Generated by ChatGPT on 2025-02-12
+
+# Table of Contents for 300s School
+
+## Subdirectories
+- [[ME 2016 - Nonlinear Dynamical Systems 1/ME 2016 - Nonlinear Dynamical Systems 1 - README]]
+- [[ME 2046 - Digital Control Theory/ME 2046 - Digital Control Theory - README]]
+- [[ME 2085 - Graduate Seminar/ME 2085 - Graduate Seminar - README]]
+- [[ME 2150 - High Assurance Cyber-Physical Systems/ME 2150 - High Assurance Cyber-Physical Systems - README]]
+- [[ME 3100 - Engineering Research and Leadership Management/ME 3100 - Engineering Research and Leadership Management - README]]
+- [[NUCE 2100 - Fundamentals of Nuclear Engineering/NUCE 2100 - Fundamentals of Nuclear Engineering - README]]
+- [[NUCE 2103 - Integration of Plant Systems with the Reactor Core/NUCE 2103 - Integration of Plant Systems with the Reactor Core - README]]
+- [[NUCE 2113 - Radiation Detection and Measurement/NUCE 2113 - Radiation Detection and Measurement - README]]
+
+## Files
+- [[reddup.sh]]
+
diff --git a/reddup.sh b/reddup.sh
index 31d8712d..f924c527 100755
--- a/reddup.sh
+++ b/reddup.sh
@@ -3,38 +3,42 @@
 # Author: ChatGPT
 # Generated on: $(date '+%Y-%m-%d')
 #
-# This script recursively creates or updates a table-of-contents README file in each
-# non-hidden directory. The file is named "Folder Name - README.md".
+# This script recursively creates or updates a table-of-contents README
+# file in each non-hidden directory. The file is named "Folder Name - README.md".
 #
 # Each README includes:
-#   - An author/date header.
+#   - A header with an author/date line.
 #   - A header with the folder's name.
-#   - An alphabetically sorted list of immediate subdirectories,
-#     with links to that subdirectory’s own README.
-#   - An alphabetically sorted list of immediate files (excluding
-#     the generated README).
+#   - An alphabetically sorted list of immediate subdirectories, with links
+#     to that subdirectory’s own README.
+#   - An alphabetically sorted list of immediate files (excluding the generated README).
 #
-# Hidden directories (or any directory under a hidden parent such as .git)
-# are skipped.
+# Hidden directories (or any directory under a hidden parent such as .git) are skipped.
 #
-# This version optimizes updates by comparing the new content (ignoring the header)
-# to the existing file and only updating if there are changes.
+# The script only updates a README if the "body" (everything from line 3 on)
+# has changed. It also prints a progress indicator like "[x/y] Updated: {dir}".
 # ------------------------------------------------------------------
 
-# If you want to remove existing README files, comment out or remove the next line.
-# find . -type f -name '* - README.md' -delete
-
 # Set the base directory (change "." if necessary)
 base_dir="."
 
-# Recursively process every directory starting from base_dir.
-find "$base_dir" -type d -print0 | while IFS= read -r -d '' dir; do
-    # Skip directories that are hidden or are within a hidden directory (like .git)
-    if [[ "$(basename "$dir")" == .* ]] || [[ "$dir" == *"/.git"* ]]; then
+# Build an array of directories to process.
+dirs=()
+while IFS= read -r -d '' dir; do
+    # Skip directories whose basename starts with a dot or whose path contains "/.git"
+    if [[ "$(basename "$dir")" == .* ]] || [[ "$dir" == *"/.git"* ]] || [[ "$dir" == *"/.obsidian"* ]] ; then
         continue
     fi
+    dirs+=( "$dir" )
+done < <(find "$base_dir" -type d -print0)
 
-    # For the top-level directory, use its actual name (using $PWD) instead of "."
+total=${#dirs[@]}
+count=0
+
+# Process each directory in the array.
+for dir in "${dirs[@]}"; do
+    count=$((count+1))
+    # For the top-level directory, use the actual name (using $PWD); otherwise, use the directory's basename.
     if [ "$dir" = "$base_dir" ]; then
         base=$(basename "$PWD")
     else
@@ -48,7 +52,6 @@ find "$base_dir" -type d -print0 | while IFS= read -r -d '' dir; do
     tmpfile=$(mktemp)
 
     # Write the header into the temporary file.
-    # (We include the date here but will ignore it when comparing changes.)
     {
       echo "Generated by ChatGPT on $(date '+%Y-%m-%d')"
       echo ""
@@ -60,21 +63,19 @@ find "$base_dir" -type d -print0 | while IFS= read -r -d '' dir; do
     # Process Subdirectories
     #########################
     subdirs=()
-    # Find immediate subdirectories (depth 1) in the current directory, skipping hidden ones.
     while IFS= read -r -d '' subdir; do
         sub_basename=$(basename "$subdir")
         if [ -n "$sub_basename" ]; then
             subdirs+=( "$sub_basename" )
         fi
     done < <(find "$dir" -mindepth 1 -maxdepth 1 -type d ! -name '.*' -print0)
-
+    
     if [ ${#subdirs[@]} -gt 0 ]; then
         # Sort subdirectory names alphabetically.
         mapfile -t sorted_subdirs < <(printf "%s\n" "${subdirs[@]}" | sort)
         echo "## Subdirectories" >> "$tmpfile"
         for sub in "${sorted_subdirs[@]}"; do
-            # Build the link to the subdirectory's README file.
-            # Format: [[Subfolder/Subfolder - README]]
+            # Link format: [[Subfolder/Subfolder - README]]
             line="- [[${sub}/${sub} - README]]"
             printf "%s\n" "$line" >> "$tmpfile"
         done
@@ -85,14 +86,13 @@ find "$base_dir" -type d -print0 | while IFS= read -r -d '' dir; do
     # Process Files
     #################
     files=()
-    # Find immediate files (depth 1), excluding the generated README file.
     while IFS= read -r -d '' file; do
         fbase=$(basename "$file")
         if [ -n "$fbase" ]; then
             files+=( "$fbase" )
         fi
     done < <(find "$dir" -mindepth 1 -maxdepth 1 -type f ! -path "$readme" -print0)
-
+    
     if [ ${#files[@]} -gt 0 ]; then
         # Sort file names alphabetically.
         mapfile -t sorted_files < <(printf "%s\n" "${files[@]}" | sort)
@@ -104,17 +104,18 @@ find "$base_dir" -type d -print0 | while IFS= read -r -d '' dir; do
         echo "" >> "$tmpfile"
     fi
 
-    # If the README file exists, compare its body (ignoring the header) with the new content.
-    # Here, we assume the header is the first two lines (the attribution and a blank line).
+    # If the README already exists, compare its body (from line 3 onward)
+    # with the new content (ignoring the first two lines, which contain the date header).
     if [ -f "$readme" ]; then
         if diff -q <(tail -n +3 "$tmpfile") <(tail -n +3 "$readme") >/dev/null; then
-            # No change in the body; do not update.
             rm "$tmpfile"
+            echo "[$count/$total] No change: $dir"
             continue
         fi
     fi
 
-    # If new or changed, move the temporary file to the target README.
+    # Update (or create) the README.
     mv "$tmpfile" "$readme"
+    echo "[$count/$total] Updated: $dir"
 done