Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Reading the value of particular column from csv file
Top Forums Shell Programming and Scripting Reading the value of particular column from csv file Post 302877353 by Don Cragun on Saturday 30th of November 2013 04:03:43 AM
Old 11-30-2013
You could try something like:
Code:
#!/bin/ksh
awk -F, -v title="${1:-der_id}" '
NR == 1 {
        for(i = 1; i <= NF; i++)
                if($i == title) {
                        field = i
                        of = title".txt"
                }
        if(of == "") {
                printf("Field heading \"%s\" not found.\n", title)
                exit 1
        }
}
{       print $field > of
}' file.csv

If you save this in a file named tester and make it executable, and the name of your csv file is file.csv, you could invoke it as:
Code:
./tester
    or
./tester der_id

and it will create a file named der_id.txt containing:
Code:
der_id
694698683
694698686

If you invoke it with another column title it will create a file with a name that is that title followed by ".txt" and store the data from that column in that file. If you give it a column title that isn't found on the first line of the file, no output file will be created but it will print a diagnostic saying it couldn't find the field heading you specified.
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

reading from a .csv file

Hi , Can anyone please help me to read the value from the .csv file? This is my .csv file: dirnames: first,second i want to get the two names and create directories correspondingly (1 Reply)
Discussion started by: novice_user
1 Replies

2. UNIX for Advanced & Expert Users

Issue reading csv file

HI All I have csv file containing the data like this Electrical Equipment,ElecEquip "Engineering, Machinery & Equipment",Engineerin Entertainment & Broadcasting,Entertain The first and third record are fine,The issue with second records as it has comma enclosed with in inverted... (1 Reply)
Discussion started by: mohdtausifsh
1 Replies

3. Shell Programming and Scripting

Reading variables from CSV file

Hi I am using KSH and trying to read variables from a csv file. I've set the IFS=, and it workds. Problem is where one of the values is text containing a comma. For example the following lines exist in my file. How can I read everything between the quotes into a single variable? APW13812,,1... (2 Replies)
Discussion started by: ventris
2 Replies

4. Shell Programming and Scripting

Reading from a CSV and writing in same CSV file

Hi, I am tryng to read from a csv file and based on some grep command output I will modify one of the column in the same csv. Example:- Input CSV:- 20120829001415,noneAA,google.com 20120829001415,dfsafds,google.com 20120829001415,noneAA,google.com Intermediate Step:- If 2nd column of... (3 Replies)
Discussion started by: kmajumder
3 Replies

5. Shell Programming and Scripting

Pick the column value based on another column from .csv file

My scenario is that I need to pick value from third column based on fourth column value, if fourth column value is 1 then first value of third column.Third column (2|3|4|6|1) values are cancatenated. Main imp point, in my .csv file, third column is having price value with comma (1,20,300), it has... (2 Replies)
Discussion started by: Ganesh L
2 Replies

6. Shell Programming and Scripting

Remove the values from a certain column without deleting the Column name in a .CSV file

(14 Replies)
Discussion started by: dhruuv369
14 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

Get maximum per column from CSV file, based on date column

Hello everyone, I am using ksh on Solaris 10 and I'm gathering data in a CSV file that looks like this: 20170628-23:25:01,1,0,0,1,1,1,1,55,55,1 20170628-23:30:01,1,0,0,1,1,1,1,56,56,1 20170628-23:35:00,1,0,0,1,1,2,1,57,57,2 20170628-23:40:00,1,0,0,1,1,1,1,58,58,2... (6 Replies)
Discussion started by: ejianu
6 Replies

9. Shell Programming and Scripting

Reading CSV file

Hi experts, Im having csv file with few columns which should contain data as shown below. Want to check if column 3 contain row with duplicate value(9876,9876) then corresponding to this in col2 should contain text "tax" and should not contain text "non". Word "non" can come but if in column3... (2 Replies)
Discussion started by: as7951
2 Replies

LEARN ABOUT DEBIAN

ifpps

ifpps(8)							netsniff-ng-toolkit							  ifpps(8)

NAME

       ifpps - fetch and format kernel network statistics

SYNOPSIS

       ifpps	 -d|--dev <netdev> [-t|--interval <sec>][-p|--promisc][-c|--term]
	    [-C|--csv][-H|--csv-tablehead][-l|--loop][-v|--version][-h|--help]

DESCRIPTION

       A tiny tool to provide top-like reliable networking statistics.	ifpps reads out the 'real' kernel statistics, so it does not give
       erroneous statistics on high I/O load.

OPTIONS

       ifpps --dev eth0
	   Fetch eth0 interface statistics.

       ifpps --dev eth0 --interval 60 --csv
	   Output eth0 interface statistics every minute in CSV format.

OPTIONS

       -h|--help
	   Print help text and lists all options.

       -v|--version
	   Print version.

       -d|--dev <netdev>
	   Device to fetch statistics for i.e., eth0.

       -p|--promisc
	   Put the device in promiscuous mode

       -t|--interval <time>
	   Refresh time in sec (default 1 sec)

       -c|--term
	   Output to terminal

       -C|--csv
	   Output in CSV format.  E.g. post-processing with Gnuplot et al.

       -H|--csv-tablehead
	   Print CSV table head.

       -l|--loop
	   Loop terminal output.

AUTHOR

       Written by Daniel Borkmann <daniel@netsniff-ng.org>

DOCUMENTATION

       Documentation by Emmanuel Roullit <emmanuel@netsniff-ng.org>

BUGS

       Please report bugs to <bugs@netsniff-ng.org>

								    2012-06-29								  ifpps(8)
All times are GMT -4. The time now is 06:34 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy