How to add a new column in a csv file?


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting How to add a new column in a csv file?
# 8  
Old 07-23-2013
Ok, you didn't specify how exactly you are getting values for the 5th column that you appended in your output file.

You could do something like this: Read your input file using a while loop by setting the IFS to comma, append the data and create an output file:
Code:
#!/bin/bash

while IFS="," read a1 a2 a3 a4
do
        # action here
done < in.csv > out.csv

# 9  
Old 07-25-2013
I would like to add a new column daily and give name as date and data in that column will come from a text file lets say abc.txt

abc.txt contains data like

500
400
100
50
350
140
100
150

now please help me to get this done using shell script
Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Compare every column from one csv file to another csv file

1.csv contains following column- Empid code loc port 101 A xy 01 102 B zx 78 103 A cg 12 104 G xy 78 2.csv contains follwing data- Empid code loc port 101 A gf 01 102 B zx 78 103 C cg 32 104 ... (1 Reply)
Discussion started by: rishabh
1 Replies

2. Shell Programming and Scripting

Add current time stamp column in existing csv file

Hi , I want to add a new column 'current_time stamp' in my existing csv file with current time stamp for all the records.I tried something this but this is printing 0 with date & time and printed date one line above header.Please help awk -F "," 'BEGIN{ OFS="," } {$6=system("date... (5 Replies)
Discussion started by: netdbaind
5 Replies

3. 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

4. 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

5. Shell Programming and Scripting

First 4 Characters of a column in CSV file

Hi All, I have a CSV file in the below format: Id,Text,File "123","This is unix file","Unix" "121","This is C file","C" Want to have output in below format: Id,Text,File "123","This","Unix" "121","This","C" File is , separator with each fields in quotes. Some fields are having... (4 Replies)
Discussion started by: Sufer
4 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

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

8. Shell Programming and Scripting

Appending = in particular column in csv file

Hi, I have a requirement to append = in particular row in csv file. Data in csv is as follow: row1,a,a,a row2,b,b,b row3,c,c,c row4,d,d,d csv should be modified at row3 and no. of columns are not fixed but rows are. output should be as: row1,a,a,a row2,b,b,b row3,=c,=c,=c... (2 Replies)
Discussion started by: Divya1987
2 Replies

9. Shell Programming and Scripting

add a additional column in csv file

Thanks for allwoing me to discuss in this forum GIVEN BELOW A simple shell script which will ask for the user to input a PC name and it will produce the output in CSV with the PC name #! /bin/bash read -p "enter the PC name :" pc #checking for netstat report netstat -pant |sed '1,2d'... (1 Reply)
Discussion started by: ayyappancheta
1 Replies
Login or Register to Ask a Question