Add internal hard drive disk cache cleaner scripts

internal-hard-drive-disk-cache-cleaner/README.md

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+# Run command
+
+```bash
+bash -c "$(wget -qLO - https://raw.githubusercontent.com/bigbeartechworld/big-bear-scripts/master/internal-hard-drive-disk-cache-cleaner/run.sh)"
+```

internal-hard-drive-disk-cache-cleaner/run.sh

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+#!/bin/bash
+
+MESSAGE="Made by BigBearTechWorld"
+
+# Function to print a decorative line
+print_decorative_line() {
+    printf "%s\n" "------------------------------------------------------"
+}
+
+# Print the introduction message with decorations
+echo
+print_decorative_line
+echo "Big Bear Internal Hard Drive Disk Cache Cleaner"
+print_decorative_line
+echo
+echo "$MESSAGE"
+echo
+print_decorative_line
+echo
+echo "If this is useful, please consider supporting my work at: https://ko-fi.com/bigbeartechworld"
+echo
+print_decorative_line
+
+# Function to clear cache
+clear_cache() {
+    echo -e "\e[1;32mSynchronizing disks...\e[0m"
+    sync  # Ensures that all pending changes are written to disk
+    echo -e "\e[1;32mClearing page cache, dentries, and inodes...\e[0m"
+    echo 3 > /proc/sys/vm/drop_caches  # Clears the page cache, dentries, and inodes
+    echo -e "\e[1;32mCache cleared successfully!\e[0m"
+}
+
+# Ask the user for confirmation to proceed
+read -p "Do you wish to proceed with clearing the cache? (y/n) " answer
+case $answer in
+    [Yy]* ) clear_cache;;  # If yes, clear the cache
+    [Nn]* ) echo "Operation aborted."; exit;;  # If no, exit the script
+    * ) echo "Please answer yes or no."; exit;;  # If invalid response, exit
+esac
+
+# End of script
+echo -e "\e[1;36mThank you for using the Big Bear Internal HDD Cache Cleaner. Goodbye!\e[0m"