grep

最新推荐文章于 2025-09-05 23:07:29 发布

weixin_30797199

最新推荐文章于 2025-09-05 23:07:29 发布

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CC 4.0 BY-SA版权

文章标签：操作系统

原文链接：http://www.cnblogs.com/mhc-fly/p/8318205.html

本文通过具体的grep命令实例展示了如何使用grep进行精确搜索，包括跨行搜索、忽略大小写等高级特性。这些技巧对于日常文件管理和文本处理非常实用。

[root@mhc regular]# cat a.txt|grep goooooogle
goooooogle yes!
[root@mhc regular]#
[root@mhc regular]#
[root@mhc regular]# cat a.txt|grep -A2 goooooogle
goooooogle yes!
go! go! Let's go.
# I am VBird
[root@mhc regular]# cat a.txt|grep -B2 goooooogle
I like dog.
google is the best tools for search keyword.
goooooogle yes!
[root@mhc regular]#
[root@mhc regular]#
[root@mhc regular]#
[root@mhc regular]# cat a.txt|grep -A2 -B2 goooooogle
I like dog.
google is the best tools for search keyword.
goooooogle yes!
go! go! Let's go.
# I am VBird

-n 打印行数

-i 不论大小写

[root@mhc regular]# cat -n a.txt |head -n 10 |tail -n 6
     5   However, this dress is about $ 3183 dollars.
     6   GNU is free air not free beer.
     7   Her hair is very beauty.
     8   I can't finish the test.
     9   Oh! The soup taste good.
    10   motorcycle is cheap than car.

grep -v '^$' a.txt|grep -v '^#'

egrep -v '^$|^#' a.txt

转载于:https://www.cnblogs.com/mhc-fly/p/8318205.html