Just One Pure ITer
by leelight · Published · Updated
一般程序部署在Linux环境，查看日志时，一般用less满足大部分的需求。
列举、记录最常用的场景，代码以Tomcat日志文件catalna.out为例。
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less catalina.out |
查看文件后，若文件过大，打通过以下命令滚动文件：
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j 下一行 k 上一行 f 向下滚动一屏幕 b 向上滚动一屏幕 g 定位到文档头部 G 定位到文档最尾部 |
退出查看文件
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q 退出less模式 |
日志文件一般有上万行，带行号显示会方便很多
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less -N catalina.ou |
查找关键字内容时，常用向下查找、向上查看。如在日志中查找，因日志一般是追加的，从下向上查找更为常用。
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/keyword 向下查找 n 向下匹配下一处匹配文本 N 向上匹配下一处匹配文本 ?keyword 向上查找 n 向上匹配下一处匹配文本 N 向下匹配下一处匹配文本 |
进入less模式后，键入F，即实时滚动文档
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F 实时滚动文档 Ctrl + c 退出实时滚动模式 类似效果： tail -f catalina.out |
[source]用less查看日志文件
by leelight · Published December 6, 2018 · Last modified December 7, 2018
by leelight · Published March 15, 2021
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