请教如何在Unix文件中某行前添加一行，或者某行后添加一行

encguwe

请教各位大神，我有个文件：
eric@ahmas1o> cat a1.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>

我想在<measInfo measInfoId="BSSGP,bssgp">前增加一行 start

在<measInfo measInfoId="BSSGP,bssgp_non_indexed">后增加一行stop

得到这个文件后，我需要做些处理，然后再删除这两行，如何做到，谢谢！

songyc_2015

1. sed -e '/BSSGP,bssgp/i\start' -e '/BSSGP,bssgp_non_indexed/a\stop' a.txt
   
2. <r p="1">0</r>
   
3. <r p="2">0</r>
   
4. <r p="3">0</r>
   
5. <r p="4">0</r>
   
6. <r p="5">0</r>
   
7. start
   
8. <measInfo measInfoId="BSSGP,bssgp">
   
9. <r p="1">0</r>
   
10. <r p="2">0</r>
    
11. <r p="3">0</r>
    
12. <r p="4">0</r>
    
13. <r p="5">0</r>
    
14. <r p="6">0</r>
    
15. <r p="7">0</r>
    
16. start
    
17. <measInfo measInfoId="BSSGP,bssgp_non_indexed">
    
18. stop
    
19. <r p="1">172328</r>
    
20. <r p="2">475498</r>

复制代码

试试

songyc_2015

1. sed -e '/BSSGP,bssgp">$/i\start' -e '/BSSGP,bssgp_non_indexed">$/a\stop' a.txt
   
2. <r p="1">0</r>
   
3. <r p="2">0</r>
   
4. <r p="3">0</r>
   
5. <r p="4">0</r>
   
6. <r p="5">0</r>
   
7. start
   
8. <measInfo measInfoId="BSSGP,bssgp">
   
9. <r p="1">0</r>
   
10. <r p="2">0</r>
    
11. <r p="3">0</r>
    
12. <r p="4">0</r>
    
13. <r p="5">0</r>
    
14. <r p="6">0</r>
    
15. <r p="7">0</r>
    
16. <measInfo measInfoId="BSSGP,bssgp_non_indexed">
    
17. stop
    
18. <r p="1">172328</r>
    
19. <r p="2">475498</r>

复制代码

不好意思，上面那个多了个start

encguwe

回复 2# songyc_2015

eric@ahmas1o> sed -e '/BSSGP,bssgp/i\start' -e '/BSSGP,bssgp_non_indexed/a\stop' a.txt
sed: command garbled: /BSSGP,bssgp/i\start
eric@ahmas1o> sed -e '/BSSGP,bssgp/i\start'
sed: command garbled: /BSSGP,bssgp/i\start

好像我的sed版本是否有问题，是solaris的


   

encguwe

回复 3# songyc_2015


eric@ahmas1o> sed -e '/BSSGP,bssgp">$/i\start' -e '/BSSGP,bssgp_non_indexed">$/a\stop' a.txt
sed: command garbled: /BSSGP,bssgp">$/i\start

eric@ahmas1o> sed -e '/BSSGP,bssgp">$/i\start' a.txt
sed: command garbled: /BSSGP,bssgp">$/i\start

好像有问题

songyc_2015

1. nawk '/\<BSSGP,bssgp\>/{print "start"}/\<BSSGP,bssgp_non_indexed\>/{print "end";next}1' file

复制代码

这样试试

encguwe

回复 6# songyc_2015

好像没加进去！

eric@ahmas1o> nawk '/\<BSSGP,bssgp\>/{print "start"}/\<BSSGP,bssgp_non_indexed\>/{print "end";next}1' a1.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>

songyc_2015

1. awk '/BSSGP,bssgp">$/{print "start"}/BSSGP,bssgp_non_indexed">$/{p=1;print;next}p{print "end";p=0}1' a.txt
   
2. <r p="1">0</r>
   
3. <r p="2">0</r>
   
4. <r p="3">0</r>
   
5. <r p="4">0</r>
   
6. <r p="5">0</r>
   
7. start
   
8. <measInfo measInfoId="BSSGP,bssgp">
   
9. <r p="1">0</r>
   
10. <r p="2">0</r>
    
11. <r p="3">0</r>
    
12. <r p="4">0</r>
    
13. <r p="5">0</r>
    
14. <r p="6">0</r>
    
15. <r p="7">0</r>
    
16. <measInfo measInfoId="BSSGP,bssgp_non_indexed">
    
17. end
    
18. <r p="1">172328</r>
    
19. <r p="2">475498</r>

复制代码

把awk改为nawk，这样试试，如果不行等大神吧

zl624867243

1. sed '5{G;s/$/start/;}' a1.txt | sed '15{G;s/$/stop/;}'
   
2. or
   
3. sed '5a\start' a1.txt | sed '15a\stop'

复制代码

encguwe

回复 9# zl624867243


    谢谢！但是不是想根据行数来添加的，那几个字符串的行数经常变化，还有什么办法吗？

这样好像/a 没起作用

eric@ahmas1o> sed '/^BSSGP,bssgp">$/a/start\' a1.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>