Log File Rotator Bash Script to Manage Log Files Efficiently

[marius]

Introduction:
This bash script rotates log files to prevent them from growing too large over time. It archives the old logs, compresses them, and creates fresh log files for continued logging.

#!/bin/bash

LOG_DIR="/var/log/myapp"
ARCHIVE_DIR="$LOG_DIR/archive"

# Create archive directory if it does not exist
mkdir -p $ARCHIVE_DIR

# Find and rotate log files
for file in $LOG_DIR/*.log; do
    if [ -f "$file" ]; then
        base=$(basename $file)
        mv $file $ARCHIVE_DIR/${base}_$(date +%Y%m%d).log
        # Optional: compress the rotated log
        gzip $ARCHIVE_DIR/${base}_$(date +%Y%m%d).log
    fi
done

# Recreate empty log files
for file in $ARCHIVE_DIR/*.gz; do
    touch $LOG_DIR/$(basename $file .log.gz).log
done

echo "Log rotation complete."

Instructions:
Run these commands to utilize the log rotator:

chmod +x log_rotate.sh
sudo ./log_rotate.sh

Example Output:

Log rotation complete.