请问shell能不能对使用正则匹配到的某组内容进行替换

limaoyuan

回复 19# Herowinter


   请问 's/bbb=+/&XXX/g'   中的  &是什么意思呀？

Herowinter

回复 21# limaoyuan
bbb=+这个正则匹配的内容。

   

limaoyuan

回复 20# yestreenstars


    好的，谢谢，可能是我的思路有问题吧，我再想想

limaoyuan

回复 22# Herowinter


    呃，我是想问 's/bbb=+/&XXX/g'   中的  &是什么意思呀？  红色的字符是什么意思？

yestreenstars

回复 24# limaoyuan
表示前面匹配到的内容~{:2_172:}

   

Herowinter

回复 24# limaoyuan

info sed

1. The REPLACEMENT can contain `\N' (N being a number from 1 to 9,
   
2. inclusive) references, which refer to the portion of the match which is
   
3. contained between the Nth `\(' and its matching `\)'.  Also, the
   
4. REPLACEMENT can contain unescaped `&' characters which reference the
   
5. whole matched portion of the pattern space.

复制代码

limaoyuan

回复 25# yestreenstars


    谢谢

limaoyuan

回复 26# Herowinter


    谢谢