sed 匹配后隔30行插入内容的问题

chen_7733

sed -e '/r100002/{n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;r aaa.txt' -e '}' bbb.txt

这个sed 能正常打印.但是无法修改bbb.txt中,这个shell能修改成写入到bbb.txt 吗或者更好的命令,这段代码是在匹配行r100002后30行插入aaa.txt的内容
---------------------
aaa.txt
1111111
2222222

bbb.txt
r100002
aaa
ddd
dddd
eee
ddd
......
ee
eeee

chen_7733

所以问问大牛还有没有其他好的代码表达方式

yinyuemi

回复 1# chen_7733

1. sed -e '/xxx/{:a;x;/^\.\{30\}/{x;r yyy' -e 'b};s/^/./;x;n;ba};' file
   

复制代码

Buring__

学些了， 已收藏

chen_7733

1.yinyuemi 老大的代码比我的简洁了许多,但是插入行还是无法写入到bbb.txt 文件中
2.我的需求是这样的
[root@appbi shellchen]# cat aaa.txt
<fsg:RptCell ColCnt="c1112" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1113" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1114" RealNum="0.000000">0.00</fsg:RptCell>
[root@appbi shellchen]# cat bbb.txt
<fsg:RptLine RptCnt="p1001" RowCnt="r100002" LineRowSeq="              20.0000000000000" LinCnt="l100002">
<fsg:RptCell ColCnt="c1000" RealDesc="  1.1广告代理净收入">  1.1广告代理净收入                </fsg:RptCell>
<fsg:RptCell ColCnt="c1001" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1002" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1003" RealNum="62860974.040000">62,860,974.04</fsg:RptCell>
<fsg:RptCell ColCnt="c1004" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1005" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1006" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1007" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1008" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1009" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1010" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1011" RealNum="-866037.740000">-866,037.74</fsg:RptCell>
<fsg:RptCell ColCnt="c1012" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1013" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1014" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1015" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1016" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1017" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1018" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1019" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1020" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1021" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1022" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1023" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1024" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1025" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1026" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1027" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1028" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1029" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1030" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1031" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1032" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1033" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1034" RealNum="-146249764.000000">-146,249,764.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1035" RealNum="-84254827.700000">-84,254,827.70</fsg:RptCell>


最终的结果是把aaa.txt 文件中的三行插入到bbb.txt中,条件是匹配行RowCnt="r100002" 后30行的位置
结果:
.....
<fsg:RptCell ColCnt="c1023" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1024" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1025" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1026" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1027" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1028" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1029" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1112" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1113" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1114" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1030" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1031" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1032" RealNum="0.000000">0.00</fsg:RptCell>
<fsg:RptCell ColCnt="c1033" RealNum="0.000000">0.00</fsg:RptCell>
.........

其实最后加个>输入也可以实现,但是我要对通一个文件(bbb.txt)循环操作20多次,所以就不能用定向输出了.

jason680

回复 1# chen_7733

1. for check only
$ perl -lape 'BEGIN{chomp($a=`cat aaa.txt`)}{if($p){if($c++==3){print $a}};/r100002/&&{$p=1,$c=0}}' bbb.txt
r100002
aaa
ddd
dddd
1111111
2222222
eee
ddd

2. replace the bbb.txt after check without issue
$ perl -i -lape 'BEGIN{chomp($a=`cat aaa.txt`)}{if($p){if($c++==30){print $a}};/r100002/&&{$p=1,$c=0}}' bbb.txt

yestreenstars

回复 7# chen_7733

加上-i参数
   

chen_7733

回复 9# yestreenstars
[root@appbi shellchen]# sed -i '/RowCnt="r100002"/{n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;n;r aaa.txt' -e '}' bbb.txt           
sed: -e expression #1, char 1: unexpected `}'