Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: How to work with fields of a csv file?
Top Forums UNIX for Dummies Questions & Answers How to work with fields of a csv file? Post 302162493 by fpmurphy on Tuesday 29th of January 2008 06:24:13 AM
Old 01-29-2008
There are a number of different types of CSV files i.e. a,b,c , "a","b","c" , etc.

Here is an example of changing the second field of a CSV file without quotes
Code:
$cat file
1,2,3
4,5,6
$ sed 's/^\([^,]*\),[^,]*,/\1,999,/' file
1,999,3
4,999,6

Here is an example of changing the second field of a CVS file with double quotes
Code:
$ cat file
"1","2","3"
"4","5","6"
$ sed 's/^\("[^"]*"\),"[^"]*",/\1,"999",/' file
"1","999","3"
"4","999","6"

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Work CSV file with awk loop

I need to converts a CSV file from Format "A" into Format "B", where the first field is repeated in a loop with a counter. I'am quite sure that this is with AWK possible burt the "Forum Search Function" doesn't work at the moment. Format "A" A1;B1 ;B2 ;B3 A2;C1 ;C2 ;C3 ... (2 Replies)
Discussion started by: frieling
2 Replies

2. Shell Programming and Scripting

How to read and parse the content of csv file containing # as delimeter into fields using Bash?

#!/bin/bash i=0 cat 1.csv | while read fileline do echo "$fileline" IFS="#" flds=( $fileline ) nrofflds=${#flds} echo "noof fields$nrofflds" fld=0 while do echo "noof counter$fld" echo "$nrofflds" #fld1="${flds}" trying to store the content of line to fields but i... (4 Replies)
Discussion started by: barani75
4 Replies

3. Shell Programming and Scripting

How to create a CSV File by reading fields from separate files

SHELL SCRIPT Hi, I have 3 separate files within a folder. Every File contains data in a single column like File1 contains data mayank sushant dheeraj File2 contains DSA_AT MG_AT FLAT_09 File3 contains data 123123 232323 (2 Replies)
Discussion started by: mayanksargoch
2 Replies

4. Shell Programming and Scripting

pulling different fields from a csv file

Hi, I have a requirment where I need to pull different columns from a .csv file. Here is the sample of the csv file. account,item,flag1,flag2,flag3,flag4,flag5,......feed,tran I will be have a config.txt file which will have the following information. item,flag5,flag10,feed,tran... (2 Replies)
Discussion started by: akdevula
2 Replies

5. Shell Programming and Scripting

awk work with time change in csv file

Hi, i have csv input file looks like below 3rd field is date and time field i want to change it with user supplied date and time says year=2011 month=09 day=05 hour=11 count=2 when count is say 10 then first ten records should pick and it should increment the... (2 Replies)
Discussion started by: raghavendra.nsn
2 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

Inserting additional comma delimiters in a csv file, after and before certian fields.

Hello I have a csv file which I need to insert addtional commas into. The csv is of the format field1,field2,field3,field4,...etc...,field13,field14 I need to add extra commas in each record so that the final output looks like ... (1 Reply)
Discussion started by: kamal_p_99
1 Replies

8. Shell Programming and Scripting

Inserting new fields to a csv file

hi I have a csv file with few rows > cat job_stat 1,jobname1,somthing,somthing 2,jobname2,somthing,somthing 3,jobname3,somthing,somthing 4,jobname4,somthing,somthing I want to add few columns after the 2nd column and then append rest of the columns after the 3rd newly added... (3 Replies)
Discussion started by: midhun19
3 Replies

9. Emergency UNIX and Linux Support

How to convert the following characters in some fields in a csv file?

I have a csv file which is produced out of a SED command sed 's/|/","/g; s/^/"/; s/$/"/' A4.txt > A5.csv and I need either an addition to the SED command or a separate command to convert the following characters which occur within the fields in multiple lines 1) "=" to =" and 2)""~ to " (4 Replies)
Discussion started by: etldev
4 Replies

10. UNIX for Beginners Questions & Answers

How to count lines of CSV file where 2 fields match variables?

I'm trying to use awk to count the occurrences of two matching fields of a CSV file. For instance, for data that looks like this... Joe,Blue,Yes,No,High Mike,Blue,Yes,Yes,Low Joe,Red,No,No,Low Joe,Red,Yes,Yes,Low I've been trying to use code like this... countvar=`awk ' $2~/$color/... (4 Replies)
Discussion started by: nmoore2843
4 Replies

LEARN ABOUT DEBIAN

obd2csv

obd2csv(1)						      General Commands Manual							obd2csv(1)

NAME

       obd2csv - Convert obdgpslogger(1) logs to csv files

SYNOPSIS

       obd2csv [ options ]

DESCRIPTION

       Convert obdgpslogger(1) logs to csv files

OPTIONS

       -o|--out <output filename>
	      Output to this .csv file

       -d|--db <database>
	      Work from logs stored in this database file

       -s|--start <time>
	      Only dump rows more recent than this

       -e|--end <time>
	      Only dump rows older than this

       -z|--gzip
	      gzip compress output using zlib [if available]

       -v|--version
	      Print out version number and exit.

       -h|--help
	      Print out help and exit.

NOT OPTIONS

       These options aren't intended for end-users, they're for the GUI.

       -p|--progress
	      Print out progress. It will occasionally print a number in the range [0..100], indicating progress percentage.

SEE ALSO

       obdgpslogger(1), obd2kml(1), obd2gpx(1), obdsim(1), obdgui(1), obdlogrepair(1)

AUTHORS

       Gary "Chunky Ks" Briggs <chunky@icculus.org>

																	obd2csv(1)
All times are GMT -4. The time now is 05:51 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy