Sponsored Content
Full Discussion: Csv file editing
Top Forums UNIX for Beginners Questions & Answers Csv file editing Post 303030049 by Don Cragun on Tuesday 5th of February 2019 11:32:53 AM
Old 02-05-2019
Hi Arun,
Welcome to the UNIX.com forums.

Whenever you start a thread here, it always helps us if you tell us what operating system and shell you're using. Various systems and shells have many similar, but not always identical tools and options. If we don't know what shell and operating system you're using, we are likely to make suggestions that will not work in your environment.

Please also show us what you have tried, what errors you are getting, what output you're getting, and tell us where you are stuck. We are here to help you learn how to do things for yourself; not to act as your unpaid programming staff.

When you say you're using a csv file, that can mean several things. Usually, it is a file containing fields that are separated by a comma. Sometimes it is a file containing fields that are separated by some other single character such as a <tab>, a <colon>, a <semicolon>, or some other single character. The sample data you've shown us seems to use a <tab> character to separate some fields and a <tab> and a varying number of <space>s for other fields. We need a clear description of what file format you are actually using.

You also need to clearly describe the output you are trying to produce. Saying that the count field should be 2,2,2,2,2 seems to be saying that you want each line of output to contain identical data that indicates the number of data points in each column that contains a value greater than .3, but that doesn't match the sample data you have supplied. Please clearly describe, in English, what the data in the count field should be for each input line AND please show us the exact output that you hope to produce from the sample input file you have supplied (in CODE tags).

Note also that if every line of input in your sample data has identical data in the fields that are being investigated, it makes it hard to know if any code that we might write for you is actually performing the checks you want to perform.

Please help us help you.
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Need to compare two csv files values and write into another csv file

Hi all, Am new to scripting. So i just need your ideas to help me out. Here goes my requirement. I have two csv files 1.csv 2.csv abc,1.24 abc,1 def,2.13 def,1 I need to compare the first column of 1.csv with 2.csv and if matches then need to compare... (2 Replies)
Discussion started by: chinnahyd
2 Replies

2. Shell Programming and Scripting

2 problems: Mailing CSV file / parsing CSV for display

I have been trying to find a good solution for this seemingly simple task for 2 days, and I'm giving up and posting a thread. I hope someone can help me out! I'm on HPUX, using sqlplus, mailx, awk, have some other tools available, but can't install stuff that isn't already in place (without a... (6 Replies)
Discussion started by: soldstatic
6 Replies

3. Shell Programming and Scripting

csv file editing using KSH

I'm trying to write a shell script to extract useful fields in a csv file and copy them to a new file: the input file is as below when opened using notepad++: //////////////////////////////////////////////////////////// ZZZZZZZZZZZZZZZZZZZZZZ ,"A", , , ,24,18,0,0,42,0 , ,B, ,... (1 Reply)
Discussion started by: zekruss
1 Replies

4. 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

5. Shell Programming and Scripting

Compare 2 csv files in ksh and o/p the difference in 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 The... (7 Replies)
Discussion started by: Naresh101
7 Replies

6. Shell Programming and Scripting

Match columns from two csv files and update field in one of the csv file

Hi, I have a file of csv data, which looks like this: file1: 1AA,LGV_PONCEY_LES_ATHEE,1,\N,1,00020460E1,0,\N,\N,\N,\N,2,00.22335321,0.00466628 2BB,LES_POUGES_ASF,\N,200,200,00006298G1,0,\N,\N,\N,\N,1,00.30887539,0.00050312... (10 Replies)
Discussion started by: djoseph
10 Replies

7. Shell Programming and Scripting

Compare 2 files of csv file and match column data and create a new csv file of them

Hi, I am newbie in shell script. I need your help to solve my problem. Firstly, I have 2 files of csv and i want to compare of the contents then the output will be written in a new csv file. File1: SourceFile,DateTimeOriginal /home/intannf/foto/IMG_0713.JPG,2015:02:17 11:14:07... (8 Replies)
Discussion started by: refrain
8 Replies

8. Shell Programming and Scripting

Save output of updated csv file as csv file itself

Hi, all I want to sort a csv file based on timestamp from oldest to newest and save the output as csv file itself. Here is an example of my csv file. test.csv SourceFile,DateTimeOriginal /home/intannf/foto/IMG_0739.JPG,2015:02:17 11:32:21 /home/intannf/foto/IMG_0749.JPG,2015:02:17 11:37:28... (10 Replies)
Discussion started by: refrain
10 Replies

9. Shell Programming and Scripting

Save output of updated csv file as csv file itself, part 2

Hi, I have another problem. I want to sort another csv file by the first field. result.csv SourceFile,Airspeed,GPSLatitude,GPSLongitude,Temperature,Pressure,Altitude,Roll,Pitch,Yaw /home/intannf/foto5/2015_0313_090651_219.JPG,0.,-7.77223,110.37310,30.75,996.46,148.75,180.94,182.00,63.92 ... (2 Replies)
Discussion started by: refrain
2 Replies
UNIQ(1) 						    BSD General Commands Manual 						   UNIQ(1)

NAME
uniq -- report or filter out repeated lines in a file SYNOPSIS
uniq [-cdu] [-f fields] [-s chars] [input_file [output_file]] DESCRIPTION
The uniq utility reads the standard input comparing adjacent lines, and writes a copy of each unique input line to the standard output. The second and succeeding copies of identical adjacent input lines are not written. Repeated lines in the input will not be detected if they are not adjacent, so it may be necessary to sort the files first. The following options are available: -c Precede each output line with the count of the number of times the line occurred in the input, followed by a single space. -d Don't output lines that are not repeated in the input. -f fields Ignore the first fields in each input line when doing comparisons. A field is a string of non-blank characters separated from adja- cent fields by blanks. Field numbers are one based, i.e. the first field is field one. -s chars Ignore the first chars characters in each input line when doing comparisons. If specified in conjunction with the -f option, the first chars characters after the first fields fields will be ignored. Character numbers are one based, i.e. the first character is character one. -u Don't output lines that are repeated in the input. If additional arguments are specified on the command line, the first such argument is used as the name of an input file, the second is used as the name of an output file. The uniq utility exits 0 on success, and >0 if an error occurs. COMPATIBILITY
The historic +number and -number options have been deprecated but are still supported in this implementation. SEE ALSO
sort(1) STANDARDS
The uniq utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible. BSD
January 6, 2007 BSD
All times are GMT -4. The time now is 10:53 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy