使用AWK来连续处理两个不同的文件 [英] Using AWK to process two different files consecutively
问题描述
我想使用awk连续评估两个文件。在第一个文件的末尾我读日期和我使用的日期作为输入第二个文件的评价。不幸的是我有一些问题理解如何检测第一文件的结尾读出的日期和继续评估下一个文件。我已经找到了一些答案，如FNR == NR，不幸的是，我不能够正确地执行它们。我通过硬编码行数试了穷人的解决方案。然而，这不是做一个非常聪明的事情。我仍然有问题，但在处理第二个文件：
I am trying to evaluate two files consecutively with awk. At the end of the first file I am reading a date and I use that date as input for the evaluation of the second file. Unfortunately I have some problems understanding how to detect the end of the first file read the date and continue evaluating the next file. I have found some answers such as FNR==NR, unfortunately, I am not able to implement them correctly. I tried a poor man’s solution by hardcoding the number of lines. However, this is not a terribly smart thing to do. I still have problems processing the second file though:
BEGIN initalize the counters
{
if(NR==FNR) <<<<<< this is needed to run properly, only NR==FNR fails, why ?!
{
# file_1
do -> from the last line of the first file extract a date
next << what is the meaning of this ??
}
{
# file_2
do -> read every line of the second file
and sum up the values form one of the colums
}
}
END { divide the sum accumulated form file=2
by the time calculated form the last line of file=1}
# for calling the script use :
awk -f SCRIPT file_1 file_2
#example files
# file1 last line
version 1.5 code 11 mpi start /01/12/2014/ 18:33:12 end /01/12/2014/ 20:05:12
#file2
1.28371E-05 0.2060 0.2060 -8 -8 0 0 0
1.91616E-05 0.1927 0.1927 -7 -8 0 0 0
1.27306E-05 0.1567 0.1567 -6 -8 0 0 0
2.11623E-05 0.1523 0.1523 -5 -8 0 0 0
1.67914E-05 0.1721 0.1721 -4 -8 0 0 0
1.47247E-05 0.1851 0.1851 -3 -8 0 0 0
1.32049E-05 0.1919 0.1919 -2 -8 0 0 0
1.81256E-05 0.2130 0.2130 -1 -8 0 0 0
2.63500E-05 0.1745 0.1745 0 -8 0 0 0
1.99232E-05 0.1592 0.1592 1 -8 0 0 0
2.08924E-05 0.1537 0.1537 2 -8 0 0 0
2.44922E-05 0.1459 0.1459 3 -8 0 0 0
2.53759E-05 0.1902 0.1902 4 -8 0 0 0
2.30230E-05 0.1708 0.1708 5 -8 0 0 0
2.10723E-05 0.1636 0.1636 6 -8 0 0 0
1.86613E-05 0.1915 0.1915 7 -8 0 0 0
2.05359E-05 0.1649 0.1649 8 -8 0 0 0
1.09533E-05 0.1765 0.1765 -8 -7 0 0 0
1.56917E-05 0.1740 0.1740 -7 -7 0 0 0
1.52199E-05 0.2145 0.2145 -6 -7 0 0 0
.....
我想AP preciate任何帮助，
谢谢你在前进
I would appreciate any help, Thank you in advance
亚历
推荐答案
这听起来像所有你需要的是这样的：
It sounds like all you need is something like:
awk '
NR==FNR {
do file1 stuff
date = $0
next
}
{
do file2 stuff using the variable "date" which is set to the last line of file1
}
' file1 file2
如果这不是你所需要的，张贴一些样本输入和预期的输出，以帮助澄清你想要做的事。
If that's not all you need, post some sample input and expected output to help clarify what you're trying to do.
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