BASH

Basic Log File Archiving

Perform simple rotation for application log files. This script archives old log files by compressing and renaming them with a timestamp, then truncates the original log file for fresh logging.

#!/bin/bash
LOG_FILE=$1
ARCHIVE_DIR="logs_archive"

if [ -z "$LOG_FILE" ]; then
    echo "Usage: $0 <path_to_log_file>"
    echo "Example: $0 /var/log/myapp/access.log"
    exit 1
fi

if [ ! -f "$LOG_FILE" ]; then
    echo "Error: Log file '$LOG_FILE' not found."
    exit 1
fi

mkdir -p "$ARCHIVE_DIR"

TIMESTAMP=$(date +"%Y%m%d_%H%M%S")
FILENAME=$(basename "$LOG_FILE")
ARCHIVED_NAME="${ARCHIVE_DIR}/${FILENAME}_${TIMESTAMP}.tar.gz"

echo "Archiving '$LOG_FILE' to '$ARCHIVED_NAME'..."
tar -czf "$ARCHIVED_NAME" "$LOG_FILE"

if [ $? -eq 0 ]; then
    echo "Archive created successfully. Truncating original log file..."
    # Truncate the original log file
    > "$LOG_FILE"
    echo "Log file '$LOG_FILE' truncated."
else
    echo "Error: Failed to create archive for '$LOG_FILE'."
    exit 1
fi

How it works: This script provides a basic method for archiving application log files. It takes the path to a log file as an argument. It creates an `logs_archive` directory, then compresses the specified log file using `tar -czf` with a timestamp in its name. Upon successful archiving, it truncates the original log file, making it ready for new log entries.

Basic Log File Archiving

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