Emergancy Space On Linux Script

by jamied_uk 7th February 2023, 15:29

Code:: #!/bin/bash # (c) J~Net 2023 - 2024 # ./emergency_space.sh # # Script to reclaim disk space on a Raspberry Pi running Raspbian OS. # Function to check disk space usage function checkspace(){ df -h / | awk 'NR==2 {gsub("%","",$5); print $5}' } echo "Starting Cleanup..." echo "" used1=$(checkspace) echo "Current Free Space: $used1" # Truncate log files if they exist if [ -e /var/log/apache2/error.log ]; then sudo truncate -s 0 /var/log/apache2/error.log fi if [ -e /var/log/apache2/access.log ]; then sudo truncate -s 0 /var/log/apache2/access.log fi if [ -e /var/log/auth.log ]; then sudo truncate -s 0 /var/log/auth.log fi if [ -e /var/log/mail.log ]; then sudo truncate -s 0 /var/log/mail.log fi # Manage systemd journal sudo journalctl --rotate sudo journalctl --vacuum-time=2d sudo journalctl --vacuum-size=100M # Clean APT cache and remove unnecessary packages sudo apt clean sudo apt autoclean -y && sudo apt autoremove -y # Remove trash files if the directory exists if [ -d /root/.local/share/Trash/files ]; then sudo find /root/.local/share/Trash/files -mindepth 2 -delete fi if [ -d /home/$USER/.local/share/Trash/files ]; then sudo find /home/$USER/.local/share/Trash/files -mindepth 2 -delete fi # Remove package lists sudo rm -rf /var/lib/apt/lists/* # Calculate freed space used2=$(checkspace) diff=$((used2-used1)) echo "Freed up $diff% disk space." echo "" echo "What log is taking up the most space..." # Find and list the largest log files sudo du -a /var/log/* | sort -n -r | head -n 10 echo "Finished Cleanup!"

Note: Backup the logs to network 1st if you need to!