17、Linux系统管理脚本：日志轮转、备份与目录归档

Linux系统管理脚本：日志轮转、备份与目录归档

1. 日志轮转脚本（rotatelogs）

在Linux系统中，许多命令、实用程序和守护进程都会将事件记录到系统日志文件中。即使磁盘空间充足，也需要关注这些日志文件的大小和内容。为了管理日志文件，我们可以使用日志轮转脚本。

1.1 脚本代码

#!/bin/bash # rotatelogs--Rolls logfiles in /var/log for archival purposes and to ensure # that the files don't get unmanageably large. This script uses a config # file to allow customization of how frequently each log should be rolled. # The config file is in logfilename=duration format, where duration is # in days. If, in the config file, an entry is missing for a particular # logfilename, rotatelogs won't rotate the file more frequently than every # seven days. If duration is set to zero, the script will ignore that # particular set of log files. l