怎么把文件1的某行插入到文件2的某行中

kingdelee

比如文件1有：
aaa
bbb
ccc
....

文件2有
111
222
333
...

怎么把文件1的第2-3行插入到文件2的第2行中
形成
111
bbb
ccc
222
333
....


我sed还不够熟悉，想了好久只好请教大家了

ly5066113

回复 1# kingdelee


try:

1. awk 'NR==2{while(getline v<"file1"){if(i++>3)break;if(i>1)print v}}1' file2

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zxy877298415

回复 1# kingdelee
awk 'FNR==NR{if(NR>=2&&NR<=3)a[2]=a[2]?a[2]"\n"$0:$0;next}{if (FNR==2) {print a[FNR]} else {print $0}}' 1 2


   

zerostudy

1. awk 'NR==FNR{if(NR==2){s=$0"\n";getline;s=s$0;};next}FNR==1{$0=$0"\n"s}1' a b

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1. eval $(awk '{if(NR==2){s=$0":";getline;s=s$0;printf("var=%s",s);exit}}' a) | sed '1a '$var'' b | sed 's/:/\n/'

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yestreenstars

1. awk 'NR==FNR{if(NR>=2&&NR<=3)s=s"\n"$0;next}FNR==1{$0=$0s}1' file1 file2

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kingdelee

涨姿势了~谢谢各位大侠

yinyuemi

回复 1# kingdelee


    sed -rn -e '1{R 2' -e '}' -e '2p' -e '3{p;:a;R 2' -e ';x;s/^/./;/.{10}/{b};x;ba}' 1
    曲线救国，黄色部分的数字，等于 $(wc -l 2)

moperyblue

more 1 2
::::::::::::::
1
::::::::::::::
aaa
bbb
ccc
::::::::::::::
2
::::::::::::::
111
222
333

1. sed '2{x;s/.*/sed 2,3!d 1/ep;x}' 2

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ll104567

awk 'NR==FNR{if(NR==2||NR==3){a[NR]=$0}}NR!=FNR{if(FNR==2){print a[2]"\n"a[3]"\n"$0}else{print $0}}'  file1 file2