grep
  2021-12-04 23:54:02 2021-12-04 23:54   2024-01-12 10:31:45  
 
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grep理解

一个有意思的事情(昨天看到的),grep的这个命令从哪里来的呢?
Its name comes from the ed command g/re/p (global / regular expression search / and print), which has the same effect.

常用的脚本

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// 
 egrep 'openTime:\d*ms' chat_timeout.xkx

// Prints only the matching part of the lines.
egrep -o 'openTime:\d*ms' chat_timeout.xkx

//  Only a count of selected lines is written to standard output
egrep -o -c 'openTime:\d*ms' chat_timeout.xkx

// Only the names of files containing selected lines are written to standard output.
egrep -o -l 'openTime:\d*ms' chat_timeout.xkx


// 在多个文件中查找匹配

egrep -o  'openTime:\d*ms' *.xkx

egrep -o  'openTime:\d*ms' chat_timeout.xkx chat_timeout_bak.xkx


总结

  1. 使用命令的时候多看man

  • Post title: grep
  • Post author: azouever
  • Create time: 2021-12-04 23:54:02
  • Post link: 2021/12/04/linux/grep/
  • Copyright notice: All articles in this blog are licensed under BY-NC-SA unless stating additionally.
 Comments
  1. 1. grep理解
  2. 2. 常用的脚本
  3. 3. 总结