请教unix环境下如何将A文件中部分内容替换B文件中的相同部分

encguwe

请问我有两个文件
a.txt
<r p="1">0</r>
<r p="2">0</r>
<r p="3">0</r>
<r p="4">0</r>
<r p="5">0</r>
<measInfo measInfoId="BSSGP,bssgp">
<r p="1">0</r>
<r p="2">0</r>
<r p="3">0</r>
<r p="4">0</r>
<r p="5">0</r>
<r p="6">0</r>
<r p="7">0</r>
<measInfo measInfoId="BSSGP,bssgp_non_indexed">
<r p="1">172328</r>
<r p="2">475498</r>


b.txt

<r p="1">35328842</r>
<r p="2">0</r>
<r p="3">18446744081936071082</r>
<measInfo measInfoId="BSSGP,bssgp">
<r p="1">35328842</r>
<r p="2">0</r>
<r p="3">18446744081936071082</r>
<measInfo measInfoId="BSSGP,bssgp_non_indexed">
<r p="1">172328</r>
<r p="2">475498</r>

我想从a.txt中从<measInfo measInfoId="BSSGP,bssgp"> 到 <measInfo measInfoId="BSSGP,bssgp_non_indexed">的内容
替换b.txt中从<measInfo measInfoId="BSSGP,bssgp"> 到 <measInfo measInfoId="BSSGP,bssgp_non_indexed">的内容，如何操作？

谢谢各位大神！在线等！

A_Traveler

1. awk '/bssgp"/{p=1}/indexed"/{p=0}NR==FNR&&p{a[++m]=$0;next}NR>FNR&&!p{print}NR>FNR&&/bssgp"/{for(i=1;i<=m;i++)print a[i]}' a.txt b.txt

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encguwe

谢谢！但是结果貌似不对

eric@ahmas1o> awk '/bssgp"/{p=1}/indexed"/{p=0}NR==FNR&&p{a[++m]=$0;next}NR>FNR&&!p{print}NR>FNR&&/bssgp"/{for(i=1;i<=m;i++)print a[i]}' a.txt b.txt
p: Event not found.

能否编个awk的脚本，用awk -f file来实现呢？

encguwe

能否以"BSSGP,bssgp"和"BSSGP,bssgp_non_indexed"作为判断的起始和结尾呢？

我是一隻羊

1. awk -vRS='<[^>]+BSSGP[^<]+>' 'NR==2{t=$0}NR>FNR{FNR==2?$0=t:1;printf $0""RT}' inputfile1 inputfile2

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encguwe

貌似还是不行，请哪位高手再帮忙想想办法，多谢！

eric@ahmas1o> awk -vRS='<[^>]+BSSGP[^<]+>' 'NR==2{t=$0}NR>FNR{FNR==2?$0=t:1;printf $0""RT}' a.txt b.txt
awk: syntax error near line 1
awk: illegal statement near line 1

我是一隻羊

你是什么环境啊?

encguwe

是solaris Unix

encguwe

还有就是我的文件中还有可能出现其它的BSSGP的字符串，因此能否仅限于"BSSGP,bssgp"和"BSSGP,bssgp_non_indexed"作为判断的起始和结尾呢？

songyc_2015

1. sed -r '/<measInfo measInfoId/{:a;N;/\n<measInfo measInfoId/!ba;s#^.*$#sed -n '/measInfo/,/measInfo/p' a.txt#e}' b.txt
   
2. <r p="1">35328842</r>
   
3. <r p="2">0</r>
   
4. <r p="3">18446744081936071082</r>
   
5. <measInfo measInfoId="BSSGP,bssgp">
   
6. <r p="1">0</r>
   
7. <r p="2">0</r>
   
8. <r p="3">0</r>
   
9. <r p="4">0</r>
   
10. <r p="5">0</r>
    
11. <r p="6">0</r>
    
12. <r p="7">0</r>
    
13. <measInfo measInfoId="BSSGP,bssgp_non_indexed">
    
14. <r p="1">172328</r>
    
15. <r p="2">475498</r>

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