#!/bin/bash # 设置变量 LOG_FILE="/opt/tomcat/logs/catalina.out" MAX_SIZE=$((10 * 1024 * 1024 * 1024)) # 10GB in bytes # 检查日志文件大小 file_size=$(du -b "$LOG_FILE" | cut -f1) if [ $file_size -gt $MAX_SIZE ]; then echo "Log file size ($file_size bytes) exceeds 10GB. Cleaning..." # 备份原始日志文件，如果不需要备份，请使用#注释以下代码 cp "$LOG_FILE" "${LOG_FILE}.bak" # 清空原始日志文件 echo "" > "$LOG_FILE" echo "Log file has been cleaned and backed up to ${LOG_FILE}.bak" else echo "Log file size ($file_size bytes) is within limits. No action needed." fi