Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: awk assistance - Comparing 2 csv files
Top Forums UNIX for Beginners Questions & Answers awk assistance - Comparing 2 csv files Post 303019757 by RudiC on Thursday 5th of July 2018 11:30:37 AM
Old 07-05-2018
2 million lines is quite something, and you have to read all into memory. Checking against 40 * 0.4 E6 (16 million) will take its time. Not sure if the system will be already into swapping with data amounts like those. Try cutting the 2 million in half or quarter.


Not sure if I understand your second query. Your usage of "csv" is not quite consistent and obvious to me.
awk needs files to operate upon, not directories. If you open, read, and close 40 (or so) files for every single line read from the (lookup / test / csv / GUID) file, you'll thrash your file system. Not clever.
Last edited by RudiC; 07-18-2018 at 05:51 AM.. Reason: Corrected an unclear formulation.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Last field problem while comparing two csv files

Hi All, I've two .csv files as below file1.csv abc, tdf, 223, tpx jgsd, tex, 342, rpy a, jdjdsd, 423, djfkld Where as file2.csv is the new version of file1.csv with some added fields in the end of each line and some additional lines. lfj, eru, 98, jkldj, 39, jdkj9 abc, tdf, 223, tpx,... (3 Replies)
Discussion started by: ganapati
3 Replies

2. Shell Programming and Scripting

Comparing 2 csv files and matching content

Hello, I have the following problem: There are two csv files csv-file #1: aaa1, aaa2, ... aaan aaa1, bbb2, ... bbbn aaa1, ccc2, ... cccn bbb1, bbb2, ... bbbn ... zzz1, zzz2, ... zzzn csv-file #2: aaa1, matchvalue1 ccc1, matchvalue2 (7 Replies)
Discussion started by: ghl10000
7 Replies

3. Shell Programming and Scripting

Comparing Strings in 2 .csv/txt files?

EDIT: My problems have been solved thanks to the help of bartus11 and pravin27 This code is just to help me learn. It serves no purpose other than that. Here's a sample csv that I'm working with - #listofpeeps.csv Jackie Chan,1954,M Chuck Norris,1930,M Bruce Lee,1940,M This code is... (13 Replies)
Discussion started by: chickeneaterguy
13 Replies

4. Shell Programming and Scripting

comparing csv files

Hi! I'm just new to shell scripting n simple tasks looks so tough in initial stage. i need to write a script which will read a property file, property file will be containing count of the csv files, and in a folder(same folder) there will be respective csv files. like Property file data1=100... (3 Replies)
Discussion started by: sukhdip
3 Replies

5. Shell Programming and Scripting

removing duplicate records comparing 2 csv files

Hi All, I want to remove the rows from File1.csv by comparing a column/field in the File2.csv. If both columns matches then I want that row to be deleted from File1 using shell script(awk). Here is an example on what I need. File1.csv: RAJAK,ACTIVE,1 VIJAY,ACTIVE,2 TAHA,ACTIVE,3... (6 Replies)
Discussion started by: rajak.net
6 Replies

6. Shell Programming and Scripting

Comparing two csv file fields using awk script

Hi All, I want to remove the rows from File1.csv by comparing the columns/fields in the File2.csv. I only need the records whose first column is same and the second column is different for the same record in both files.Here is an example on what I need. File1.csv: RAJAK|ACTIVE|1... (2 Replies)
Discussion started by: rajak.net
2 Replies

7. Shell Programming and Scripting

Comparing 2 difference csv files

Hello, I have about 10 csv files which range from csv1 - csv10. Each csv file has same type/set of tabs and we have around 5-6 tabs for each of the csv file which have slightly different content(data). A sample of CSV1 is shown below: Joins: Data related to Joins, it can be any number of... (2 Replies)
Discussion started by: bobby1015
2 Replies

8. Shell Programming and Scripting

Comparing 2 CSV files and sending the difference to a new csv file

(say) I have 2 csv files - file1.csv & file2.csv as mentioned below: file1.csv ID,version,cost 1000,1,30 2000,2,40 3000,3,50 4000,4,60 file2.csv ID,version,cost 1000,1,30 2000,2,45 3000,4,55 6000,5,70 ... (1 Reply)
Discussion started by: Naresh101
1 Replies

9. Shell Programming and Scripting

Comparing two large unsorted csv files

Hi All, My requirement is to write a shell script to compare two large csv files. I've created sample files for explaining my problem i.e., a.csv and b.csv contents of files: ----------------- a.csv ------ Type,Memory (Kb),Location HD,Size (Mb),Serial # XT,640,D402,0,MG0010... (2 Replies)
Discussion started by: vasavi
2 Replies

10. Shell Programming and Scripting

Comparing two CSV files

I have two csv files and im trying to compare them. e.g. SAMPLE DATA: file one: ZipCode Name 20878 Washington 10023 Missouri 20304 Maryland file two: ID Name City ZipCode 11654 ... (11 Replies)
Discussion started by: dan139
11 Replies

LEARN ABOUT DEBIAN

csv2po

csv2po(1)						      Translate Toolkit 1.9.0							 csv2po(1)

NAME

       csv2po - convert Comma-Separated Value (.csv) files to Gettext PO localization files

SYNOPSIS

       csv2po  [--version]  [-h|--help]  [--manpage]  [--progress  PROGRESS]  [--errorlevel  ERRORLEVEL] [-i|--input] INPUT [-x|--exclude EXCLUDE]
       [-o|--output] OUTPUT [-t|--template TEMPLATE] [--charset CHARSET] [--columnorder] [--duplicates DUPLICATESTYLE]

DESCRIPTION

       See: http://translate.sourceforge.net/wiki/toolkit/csv2po for examples and usage instructions

OPTIONS

       --version
	      show program's version number and exit

       -h/--help
	      show this help message and exit

       --manpage
	      output a manpage based on the help

       --progress
	      show progress as: dots, none, bar, names, verbose

       --errorlevel
	      show errorlevel as: none, message, exception, traceback

       -i/--input
	      read from INPUT in csv format

       -x/--exclude
	      exclude names matching EXCLUDE from input paths

       -o/--output
	      write to OUTPUT in po, pot formats

       -t/--template
	      read from TEMPLATE in pot, po, pot formats

       --charset
	      set charset to decode from csv files

       --columnorder
	      specify the order and position of columns (location,source,target)

       --duplicates
	      what to do with duplicate strings (identical source text): merge, msgctxt (default: 'msgctxt')

							      Translate Toolkit 1.9.0							 csv2po(1)
All times are GMT -4. The time now is 04:03 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy