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replace_remove/replace_spaces_with_underscores.sh

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+#!/bin/bash
+
+# Function to rename files and folders recursively
+replace_spaces_with_underscores() {
+    find "$1" -depth | while read -r item; do
+        # Replace spaces with underscores in names
+        new_item=$(echo "$item" | sed 's/ /_/g')
+        
+        # Rename item if the new name is different
+        if [ "$item" != "$new_item" ]; then
+            mv "$item" "$new_item"
+            echo "Renamed: $item -> $new_item"
+        fi
+    done
+}
+
+# Starting directory (default is current directory if no argument is provided)
+start_dir="${1:-.}"
+
+echo "Starting from directory: $start_dir"
+replace_spaces_with_underscores "$start_dir"
+
+echo "Done!"