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！

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

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>

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>

encguwe

回复 8# songyc_2015


    谢谢，用nawk成了

eric@ahmas1o> nawk '/BSSGP,bssgp">$/{print "start"}/BSSGP,bssgp_non_indexed">$/{p=1;print;next}p{print "end";p=0}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>
start
<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">
end
<r p="1">172328</r>
<r p="2">475498</r>

encguwe

回复 12# drakness


    谢谢!好用的！

eric@ahmas1o> perl  -ne 'print "START\n" if /BSSGP,bssgp">/;print "END\n" if /bssgp_non_indexed">/ ;print' 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>
START
<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>
END
<measInfo measInfoId="BSSGP,bssgp_non_indexed">
<r p="1">172328</r>
<r p="2">475498</r>