我有两个文件，如：
cat file 1
C 18 -2.182951850 -0.000000000 -6.517815410
C 20 -4.127401075 0.000000000 -0.446529291
C 22 -3.314258919 -2.494999886 -15.624910016
C 24 -6.071850300 0.000000000 5.624757806
C 26 -2.023950100 0.000000000 5.624757806
C 28 -4.286402584 -0.000000000 -12.589102506
C 30 -6.230851809 -0.000000000 -6.517815410
C 32 -0.079500634 0.000000000 -0.446529291
.. .. ............ ........... ............
cat file 2
O 34 -1.393125174 -0.640765928 -5.738276269
O 36 -3.337574640 -0.640765928 0.333010828
O 38 -2.524270589 1.854234106 -14.845370570
O 40 -5.282024106 -0.640765928 6.404297925
O 42 -2.182951850 1.281531856 -6.517815410
O 44 -4.127401075 1.281531856 -0.446529291
O 46 -3.314258919 -1.213468178 -15.624910016
O 48 -6.071850300 1.281531856 5.624757806
O 50 -2.972778044 -0.640765928 -7.297355528
O 52 -4.917227269 -0.640765928 -1.226068432
O 54 -4.104085113 1.854234106 -16.404449463
O 56 -6.861676614 -0.640765928 4.845217687
O 58 -2.813776294 0.640765779 4.845217687
O 60 -5.076228778 0.640765779 -13.368642136
O 62 -7.020678123 0.640765779 -7.297355528
O 64 -0.869326828 0.640765779 -1.226068432
O 66 -2.023950100 -1.281531708 5.624757806
O 68 -4.286402584 -1.281531708 -12.589102506
O 70 -6.230851809 -1.281531708 -6.517815410
O 72 -0.079500634 -1.281531708 -0.446529291
O 74 -1.234123906 0.640765779 6.404297925
O 76 -3.496576390 0.640765779 -11.809563365
O 78 -5.441025615 0.640765779 -5.738276269
O 80 0.710325077 0.640765779 0.333010828
... ... ........... ........... ...........
我想使用以下模式连接这两个文件：C18行跟随O34行，然后文件2中的3行：O42行，然后文件2中的另外3行：O50行。
接下来，C20，O36，O44和O52。您可能已经注意到，在4次循环后，模式重复O行，所以我想跳到C26中的O58行并跟随行。文件非常大，所以我只需要在这4次迭代后跳转的东西。为清楚起见，我将向您显示输出文件：
cat file 3
C 18 -2.182951850 -0.000000000 -6.517815410
O 34 -1.393125174 -0.640765928 -5.738276269
O 42 -2.182951850 1.281531856 -6.517815410
O 50 -2.972778044 -0.640765928 -7.297355528
C 20 -4.127401075 0.000000000 -0.446529291
O 36 -3.337574640 -0.640765928 0.333010828
O 44 -4.127401075 1.281531856 -0.446529291
O 52 -4.917227269 -0.640765928 -1.226068432
C 22 -3.314258919 -2.494999886 -15.624910016
O 38 -2.524270589 1.854234106 -14.845370570
O 46 -3.314258919 -1.213468178 -15.624910016
O 54 -4.104085113 1.854234106 -16.404449463
C 24 -6.071850300 0.000000000 5.624757806
O 40 -5.282024106 -0.640765928 6.404297925
O 48 -6.071850300 1.281531856 5.624757806
O 56 -6.861676614 -0.640765928 4.845217687
here comes the problem!!
C 26 -2.023950100 0.000000000 5.624757806
O 58 -2.813776294 0.640765779 4.845217687
O 66 -2.023950100 -1.281531708 5.624757806
O 74 -1.234123906 0.640765779 6.404297925
C 28 -4.286402584 -0.000000000 -12.589102506
O 60 -5.076228778 0.640765779 -13.368642136
O 68 -4.286402584 -1.281531708 -12.589102506
O 76 -3.496576390 0.640765779 -11.809563365
.. .. ............ ............. .........
这是我想要重复O行时使用的代码：
# first file
NR == FNR {
a[NR] = $0 # save each line into array
++len
next # skip further blocks
}
{ b[FNR] = $0 } # save each line from 2nd file into array
END {
# loop through and print
for (i = 1; i <= len; ++i) {
print a[i]
for (j = i; j <= FNR; j += 4) print b[j]
}
}
并执行awk -f script.awk file1 file2
非常感谢提前。 GIT中
答案 0 :(得分：1)
如果文件很大，在内存操作中可能不可行。在这里，我建议采用两阶段方法。以相同的顺序对文件2行进行随机播放，以所需的格式显示，并按行1：3的比例合并file1和file2。
例如：
$ awk '{a[(NR-1)%12]=$0}
NR%12==0{for(i=0;i<4;i++)
for(j=0;j<3;j++)
print a[i+j*4];
delete a
}' <(seq 1 24)
1
5
9
2
6
10
3
7
11
4
8
12
13
17
21
14
18
22
15
19
23
16
20
24
将以正确的顺序放置file2行。与合并相结合
awk '{print; for(i=1;i<=3;i++) {getline x < "file2_reordered"; print x}}' file1
将为您提供所需的输出。
PS。这个行重排类似于转置一系列3x4矩阵（将每一行作为一个元素）。
更新：反过来思考问题，你可以在处理file2时散布file1内容。这将是一个单一的脚本。
$ awk '{a[(NR-1)%12]=$0}
NR%12==0{for(i=0;i<4;i++) {
getline x < "file1"; print x;
for(j=0;j<3;j++)
print a[i+j*4]
}
delete a
}' file2
C 18 -2.182951850 -0.000000000 -6.517815410
O 34 -1.393125174 -0.640765928 -5.738276269
O 42 -2.182951850 1.281531856 -6.517815410
O 50 -2.972778044 -0.640765928 -7.297355528
C 20 -4.127401075 0.000000000 -0.446529291
O 36 -3.337574640 -0.640765928 0.333010828
O 44 -4.127401075 1.281531856 -0.446529291
O 52 -4.917227269 -0.640765928 -1.226068432
C 22 -3.314258919 -2.494999886 -15.624910016
O 38 -2.524270589 1.854234106 -14.845370570
O 46 -3.314258919 -1.213468178 -15.624910016
O 54 -4.104085113 1.854234106 -16.404449463
C 24 -6.071850300 0.000000000 5.624757806
O 40 -5.282024106 -0.640765928 6.404297925
O 48 -6.071850300 1.281531856 5.624757806
O 56 -6.861676614 -0.640765928 4.845217687
C 26 -2.023950100 0.000000000 5.624757806
O 58 -2.813776294 0.640765779 4.845217687
O 66 -2.023950100 -1.281531708 5.624757806
O 74 -1.234123906 0.640765779 6.404297925
C 28 -4.286402584 -0.000000000 -12.589102506
O 60 -5.076228778 0.640765779 -13.368642136
O 68 -4.286402584 -1.281531708 -12.589102506
O 76 -3.496576390 0.640765779 -11.809563365
C 30 -6.230851809 -0.000000000 -6.517815410
O 62 -7.020678123 0.640765779 -7.297355528
O 70 -6.230851809 -1.281531708 -6.517815410
O 78 -5.441025615 0.640765779 -5.738276269
C 32 -0.079500634 0.000000000 -0.446529291
O 64 -0.869326828 0.640765779 -1.226068432
O 72 -0.079500634 -1.281531708 -0.446529291
O 80 0.710325077 0.640765779 0.333010828