Shell脚本分割Nginx日志，并定期清理

<ol>
<li value="1"><span>#!/bin/bash</span></li>
<li><span>#nginx access log segmentation shell script</span></li>
<li><span>#www.webyang.net</span></li>
<li><span>#日志目录</span></li>
<li>
<span>log_dir</span><span>=</span><span>"/usr/local/nginx/logs/"</span>
</li>
<li><span>cd $log_dir</span></li>
<li>
<span>time</span><span>=</span><span>`date +%Y%m%d --date="-1 day"`</span>
</li>
<li><span>#nginx启动目录</span></li>
<li>
<span>nginx_dir</span><span>=</span><span>"/etc/init.d/nginx"</span>
</li>
<li><span>#日志保存天数</span></li>
<li>
<span>save_days</span><span>=</span><span>15</span>
</li>
<li><span>#日志文件名所处'/'分割的位置，key('/'数+1)</span></li>
<li>
<span>num</span><span>=</span><span>6</span><span>;</span>
</li>
<li><span> </span></li>
<li><span>#此处待优化（取得文件不带后缀的文件名）</span></li>
<li>
<span>website</span><span>=</span><span>`ls $log_dir*.log | xargs -n 1 | cut -f 1 -d "." | cut -f $num -d "/"`</span>
</li>
<li><span>#日志目录下所有的日志文件为文件夹，循环新建对应的时间文件</span></li>
<li>
<span>for</span><span> i </span><span>in</span><span> $website</span>
</li>
<li><span>do</span></li>
<li><span>#判断目录是否存在</span></li>
<li>
<span>if</span><span>[</span><span>!</span><span>-</span><span>d $log_dir$i </span><span>];</span><span>then</span>
</li>
<li>
<span>        mkdir </span><span>"$i"</span>
</li>
<li><span>fi</span></li>
<li>
<span>    mv $log_dir$i</span><span>.</span><span>log $log_dir$i</span><span>/</span><span>$i</span><span>-</span><span>$time</span><span>.</span><span>log</span>
</li>
<li><span>done</span></li>
<li><span> </span></li>
<li><span>#删除设置天数前的数据</span></li>
<li>
<span>find $log_dir</span><span>/</span><span>-</span><span>mtime </span><span>+</span><span>$save_days </span><span>-</span><span>exec</span><span> rm </span><span>-</span><span>rf </span><span>{}</span><span> \;</span>
</li>
<li><span> </span></li>
<li><span>#平滑启动nginx</span></li>
<li><span>$nginx_dir  reload</span></li>
</ol>