Shell script for .Txt to .csv conversion with data processing


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# 1  
Shell script for .Txt to .csv conversion with data processing

Hi experts,

I want to convert a txt file having rows and columns (CNAI_DUMP_raw.txt) by comparing it with another text file (paramaters.txt) and generate a output in CSV which contains only 3rd column from CNAI_DUMP_raw.txt, and the columns mentioned in parameters.txt.

FYI: There are two columns in parameters.txt one containing some column name from CNAI_DUMP.txt and other with the ideal value against it.

The output should contain actual value of the cell and the ideal value mentioned in parameters.txt.

Both the files are attached herewith.

Please let me know for any more information.
# 2  
Hi, what have you tried and where are you stuck? What column from CNAI_DUMP.txt needs to be matched agains which column in parameters.txt..
This User Gave Thanks to Scrutinizer For This Post:
# 3  
Reply of the post

Hi,

I need to match 1st row in CNAI_DUMP_raw.txt with 1st column of parameter.txt

Desired output in CSV:

1st column: Parameter ( This column is present in CNAI_DUMP_RAW.txt in the first row and Parameter.txt in the first column)

2nd Column: Ideal Value ( This is the 2nd column present in Parameter.txt)

3rd Column: Cell Name ( Present in 4th cloumn of CNAI_DUMP_RAW.txt)
E.g RBR201A
RBR201B...

4th Column: Actual Value ( Present in CNAI_DUMP_RAW.txt)
This is the value of the cell in (CNAI_DUMP_RAW.txt) with Row id as Cell name and Column Id as 1st Column of Parameter.txt

---------- Post updated at 12:52 PM ---------- Previous update was at 12:38 PM ----------

Hi Scrutinizer,

I have tried to explain my desired output in the post above.

Also the input files were attached in the first post.

The desired output which I want to show in in csv format and can not be shown in code.

Please let me know for more clarification

---------- Post updated at 01:06 PM ---------- Previous update was at 12:52 PM ----------

Hi Scrutinizer,

I have tried to explain my desired output in the post above.

Also the input files were attached in the first post.

The desired output which I want to show in in csv format and can not be shown in code.

Please let me know for more clarification
# 4  
Has anyone found any matches in these two files?
# 5  
Quote:
Originally Posted by ongoto
Has anyone found any matches in these two files?
The OP didn't bother mentioning:
  1. that the field names contain uppercase letters in paramaters.txt but contain lowercase letters in CNAI_DUMP_raw.txt,
  2. what operating system is being used (which with an input file with lines containing well over 10,000 bytes per line can be very important), nor
  3. what shell is being used.
If the OP is unwilling to provide a small set of sample input files, corresponding desired sample output, and a clear explanation of the processing to be performed to produce that desired output from the input files; there isn't a high likelihood that a working solution will be provided here. (Nor is there much incentive for the volunteers here to download 150Kb of data to try to guess at what needs to be done.)

Furthermore, when asked "what have you tried and where are you stuck?", the response was two repeated demands for us to provide working code.

The UNIX & Linux Forums is here to help people learn how to use the great tools available on UNIX and Linux systems to perform wondrous computing tasks. We are not here to work as unpaid programming staff for someone who is unwilling to demonstrate any attempt to do any work to get the job done.

Last edited by Don Cragun; 01-03-2015 at 10:34 PM.. Reason: Fix typos.
# 6  
Hello Experts,

Apologies for the inconvenience faced, as I may have not able to present the problem.

Of course neither I am here to get my work completely done not I am a hacker but to learn and take help for experts like you for a text processing issue.

My OS version:
Code:
Linux L9AHD91 3.8.0-44-generic #66~precise1-Ubuntu SMP Tue Jul 15 04:01:04 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

Shell is bash shell

Work done so far:

Code:
a=$( cat CNAI_DUMP_raw.txt | awk '{print $4}') ;

awk '{print $2}' paramaters.txt > b.txt

b= cat b.txt

c=$( cat paramaters.txt | awk '{print $1}') ;

echo $a;
echo $b;
echo $c;

Sample i/p files are CNAI_DUMP_raw.txt and paramaters.txt already attached
The output file required is in .csv format. How can I attach it here?

Last edited by Don Cragun; 01-04-2015 at 05:33 AM.. Reason: Change multi-line ICODE tags to CODE tags.
# 7  
Quote:
Originally Posted by Gautam Banerjee
... ... ...
Sample i/p files are CNAI_DUMP_raw.txt and paramaters.txt already attached
The output file required is in .csv format. How can I attach it here?
Rather than uploading well over a hundred kilobytes of data, it would be much better to:
  1. describe the number of fields, number of bytes / line, and total sizes of your real input and expected output files,
  2. provide abbreviated (fewer fields and fewer lines, but enough to show the structure of your data) sample input (in CODE tags) in your post instead of hoping that some of the volunteers here have space to burn on the systems they use to try to help you,
  3. provide sample output corresponding to your sample input (also in CODE tags), and
  4. describe in English what processing needs to be done to produce the output you want from the input files you have supplied (including case translations, input and output field separators [and when an input file uses space as a field separator and as data in a field, explain how you know which spaces are data and which spaces are separators]).

Don't just show us the code you have written. Explain what it is trying to do and how that relates to producing the output you want. We can help you fill in missing pieces of code once we understand what you're trying to do.

If you absolutely must upload a .csv file; assuming you have the desired output in a file named output.csv, move or link it to output.txt and upload output.txt.
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