commit b25dfe4e394d2342c1770a5c8cfcc2f38ea1ffef
Author: arul <arulbalaji00@tutamail.com>
Date:   Wed Mar 12 12:59:01 2025 +0530

    linux server disk cleaner sccripts

diff --git a/README.md b/README.md
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index 0000000..e69de29
diff --git a/clean-disk b/clean-disk
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--- /dev/null
+++ b/clean-disk
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+#!/bin/bash
+
+journalctl --disk-usage  #checks disk size used by journal
+journalctl --vacuum-time=3d #deletes journal older than 3 days
diff --git a/clean_old_kernals.sh b/clean_old_kernals.sh
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--- /dev/null
+++ b/clean_old_kernals.sh
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+#!/bin/bash
+
+# Get currently running kernel version
+current_kernel=$(uname -r)
+echo "Currently running kernel: $current_kernel"
+
+# Get all installed kernels
+installed_kernels=$(dpkg --list | grep linux-image | awk '{print $2}')
+
+# Determine the latest kernel version installed
+kernel_versions=$(echo "$installed_kernels" | grep -Eo '6.1.0-[0-9]+-cloud-amd64' | sort -V)
+
+latest_kernel=$(echo "$kernel_versions" | tail -n 1)
+second_latest=$(echo "$kernel_versions" | tail -n 2 | head -n 1)
+third_latest=$(echo "$kernel_versions" | tail -n 3 | head -n 1)
+
+echo -e "\nKernels that will be KEPT:"
+echo "$current_kernel (currently running)"
+echo "$latest_kernel (latest installed)"
+echo "$second_latest (second latest)"
+echo "$third_latest (third latest)"
+
+# Prepare a list of kernels to remove
+echo -e "\nKernels that will be REMOVED:"
+kernels_to_remove=()
+for kernel in $installed_kernels; do
+    if [[ "$kernel" != *"$current_kernel"* ]] && \
+       [[ "$kernel" != *"$latest_kernel"* ]] && \
+       [[ "$kernel" != *"$second_latest"* ]] && \
+       [[ "$kernel" != *"$third_latest"* ]]; then
+        echo "$kernel"
+        kernels_to_remove+=("$kernel")
+    fi
+done
+
+# Confirm before removing
+echo -e "\nDo you want to proceed with the removal? (y/N): "
+read -r confirm
+if [[ "$confirm" != "y" && "$confirm" != "Y" ]]; then
+    echo "Aborted."
+    exit 0
+fi
+
+# Remove old kernels
+if [ ${#kernels_to_remove[@]} -eq 0 ]; then
+    echo "No old kernels to remove."
+else
+    echo "Removing old kernels..."
+    sudo apt-get purge -y "${kernels_to_remove[@]}"
+    sudo apt-get autoremove --purge -y
+    sudo apt-get clean
+fi
+
+# Update GRUB
+echo "Updating GRUB..."
+sudo update-grub
+
+# Display remaining disk space
+echo -e "\nDisk space after cleanup:"
+df -h /
+
+echo "Cleanup completed!"
+
diff --git a/remove-big-folders-unused-docker.sh b/remove-big-folders-unused-docker.sh
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--- /dev/null
+++ b/remove-big-folders-unused-docker.sh
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+#!/bin/bash
+
+echo "Displaying the 20 largest files on the system:"
+find / -xdev -type f -exec du -h {} + 2>/dev/null | sort -rh | head -n 20
+
+echo -e "\nThe following files are safe to remove and will free up space:"
+SAFE_TO_REMOVE=(
+    "/var/log/btmp"
+    "/usr/local/nginx/logs/access.log"
+    "/usr/local/nginx/logs/error.log"
+    "/var/log/nginx/access.log"
+    "/var/log/letsencrypt/letsencrypt.log"
+    "/var/log/nginx/yarr_access.log"
+    "/var/lib/apt/lists/*"
+)
+
+for file in "${SAFE_TO_REMOVE[@]}"; do
+    if [ -e "$file" ] || [ -d "$file" ]; then
+        echo "$file"
+    fi
+done
+
+read -p "Do you want to proceed with the removal? (y/N): " CONFIRM
+if [[ "$CONFIRM" =~ ^[Yy]$ ]]; then
+    echo -e "\nRemoving files..."
+    for file in "${SAFE_TO_REMOVE[@]}"; do
+        if [ -f "$file" ]; then
+            > "$file"
+            echo "Truncated: $file"
+        elif [ -d "$file" ]; then
+            rm -rf "$file"
+            echo "Removed directory: $file"
+        fi
+    done
+
+    echo -e "\nCleaning APT cache..."
+    apt clean
+
+    echo -e "\nPruning Docker (if installed)..."
+    if command -v docker >/dev/null 2>&1; then
+        docker system prune -af
+        docker volume prune -f
+    fi
+
+    echo -e "\nCleaning journal logs..."
+    journalctl --vacuum-size=50M
+
+    echo -e "\nCleanup completed."
+else
+    echo "Operation cancelled."
+fi
+
diff --git a/remove-heavy-packages.sh b/remove-heavy-packages.sh
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index 0000000..16e1ce2
--- /dev/null
+++ b/remove-heavy-packages.sh
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+#!/bin/bash
+
+# Display the 20 heaviest installed packages
+echo "Top 20 heaviest installed packages:"
+echo "-----------------------------------"
+dpkg-query -Wf '${Installed-Size}\t${Package}\n' | sort -rn | awk '{printf "%d. %.3f MB\t%s\n", NR, $1/1024, $2}' | head -n 20
+
+# Prompt user for input
+echo -e "\nDo you want to remove any of these packages? (y/N): "
+read -r confirm
+
+if [[ "$confirm" =~ ^[Yy]$ ]]; then
+    echo -e "\nEnter the numbers of the packages to remove (e.g., 1 3 5), or press Enter to skip: "
+    read -r choices
+
+    if [ -n "$choices" ]; then
+        # Get the package names for the chosen numbers
+        packages_to_remove=()
+        for choice in $choices; do
+            package=$(dpkg-query -Wf '${Installed-Size}\t${Package}\n' | sort -rn | awk '{print $2}' | head -n 20 | sed -n "${choice}p")
+            if [ -n "$package" ]; then
+                packages_to_remove+=("$package")
+            else
+                echo "Invalid choice: $choice"
+            fi
+        done
+
+        # Confirm and remove the selected packages
+        if [ ${#packages_to_remove[@]} -gt 0 ]; then
+            echo -e "\nThe following packages will be removed: ${packages_to_remove[*]}"
+            echo -e "Are you sure? (y/N): "
+            read -r final_confirm
+
+            if [[ "$final_confirm" =~ ^[Yy]$ ]]; then
+                apt remove --purge "${packages_to_remove[@]}"
+                apt autoremove -y
+                echo "Selected packages removed successfully."
+            else
+                echo "Operation cancelled."
+            fi
+        else
+            echo "No valid packages selected for removal."
+        fi
+    else
+        echo "No packages selected. Exiting."
+    fi
+else
+    echo "No action taken. Exiting."
+fi
+
+
+