Sponsored Content
Top Forums Shell Programming and Scripting How to delete a column/columns of a CSV file which has cell values with a string enclosed in " , "? Post 302825437 by Yoda on Monday 24th of June 2013 12:11:13 PM
Old 06-24-2013
Quote:
Originally Posted by dhruuv369
can you please explain the code...
Code:
awk -F, '                               # Set comma as input field separator
        NR == 1 {                       # If NR (total records read) == 1
                NF -= 3                 # Subtract 3 from NF (number of fields in current record)
        }
        NF > 1 {                        # If NR (total records read) > 1
                sub (/",.*/, "\"")      # Substitute " followed by , followed by .* (0 or more occurrence of any char) with "
        }
        1                               # 1 == true (if true, default awk action is print)
' OFS=, file                            # Set comma as output field separator

These 2 Users Gave Thanks to Yoda For This Post:
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk command to replace ";" with "|" and ""|" at diferent places in line of file

Hi, I have line in input file as below: 3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL My expected output for line in the file must be : "1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL" Can someone... (7 Replies)
Discussion started by: shis100
7 Replies

2. UNIX for Dummies Questions & Answers

replace "," with "." only in specific columns of a file?

Hi all, I have this text file containing 9 columns separated by space. The 8th columns contains the numbers. C1 C2 C3 C4 C5 C6 C7 C8 C9 er rt yt gh iu nk il 0.07 xs yt lr ty bg iu zk nh 0,0005 lt ...etc. I want to replace the comma with full stop only in 8th coloumn. the output... (8 Replies)
Discussion started by: Unilearn
8 Replies

3. Shell Programming and Scripting

Choosing between repeated entries based on the "absolute values" of a column

Hello, I was looking for a way to select between the repeated entries (column1) based on the values of absolute values of column 3 (larger value). For example if the same gene id has FC value -2 and 1, I should get the output as -2. Kindly help. GeneID Description FC ... (2 Replies)
Discussion started by: Sanchari
2 Replies

4. Shell Programming and Scripting

Working with CSV files values enclosed with ""

I have a CSV file as shown below "1","SANTHA","KUMAR","SAM,MILLER","DEVELOPER","81,INDIA" "2","KAPIL","DHAMI","ECO SPORT","DEVELOPER","82,INDIA" File is comma delimited.All the field values are enclosed by double quotes. But while using awk or cut, it interprets the comma which is present in... (6 Replies)
Discussion started by: santhansk
6 Replies

5. Shell Programming and Scripting

How to delete the commas in a .CSV file that are enclosed in a string with double quotes?

Okay, I would like to delete all the commas in a .CSV file (TEST.CSV) or at least substitute them with empty space, that are enclosed in double quote. Please see the sample file as below: column 1,column 2,column 3,column 4,column 5,column 6,column 7,column 8,column 9,column 10... (8 Replies)
Discussion started by: dhruuv369
8 Replies

6. Linux

To get all the columns in a CSV file based on unique values of particular column

cat sample.csv ID,Name,no 1,AAA,1 2,BBB,1 3,AAA,1 4,BBB,1 cut -d',' -f2 sample.csv | sort | uniq this gives only the 2nd column values Name AAA BBB How to I get all the columns of CSV along with this? (1 Reply)
Discussion started by: sanvel
1 Replies

7. Shell Programming and Scripting

How to delete a columns of a CSV file which has cell values with a string enclosed in " , "?

Hi How can I delete a columns from a CSV file which has comma separated value with a string enclosed in double quotes or square bracket and a comma in between? I have a csv file with below format. Template,Target Server,Target Component,Rule Group,Rule,Rule Reference Number,Rule... (7 Replies)
Discussion started by: Litu19
7 Replies

8. UNIX for Dummies Questions & Answers

Replacing "." with "GG" in a certain column of a file that has heading

Hi, all, I have a file that looks like: ## XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX ## YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY #AA AB AC AD AE AF AG AH AI AJ AK AL 20 60039 60039 ... (5 Replies)
Discussion started by: kush
5 Replies

9. Shell Programming and Scripting

Delete all log files older than 10 day and whose first string of the first line is "MSH" or "<?xml"

Dear Ladies & Gents, I have a requirement to delete all the log files in /var/log/test directory that are older than 10 days and their first line begin with "MSH" or "<?xml" or "FHS". I've put together the following BASH script, but it's erroring out: for filename in $(find /var/log/test... (2 Replies)
Discussion started by: Hiroshi
2 Replies
DPKG-RUBY(1)						      General Commands Manual						      DPKG-RUBY(1)

NAME
dpkg-ruby - Utility to read a dpkg style db file, dpkg-awk clone SYNOPSIS
dpkg-ruby [(-f|--file) filename] [(-d|--debug) ##] [(-s|--sort) list] [(-n|--numeric) list] [(-rs|--rec_sep) ??] '<fieldname>:<regex>' ... -- <out_fieldname> .. DESCRIPTION
dpkg-ruby Parses a dpkg status file(or other similarly formated file) and outputs the resulting records. It can use regex on the field values to limit the returned records, and it can also be told which fields to output. As another option, it can sort the matched fields. OPTIONS
-f filename --file filename The file to parse. The default is /var/lib/dpkg/status. -d [#] --debug [#] Each time this is specified, it increased the debug level. -s field(s) --sort field(s) A space or comma separated list of fields to sort on. -n field(s) --numeric field(s) A space or comma separated list of fields that should be interpreted as numeric in value. -rs ?? --rec_sep ?? Output this string at the end of each output paragraph. -h --help Display some help. fieldname The fields from the file, that are matched with the regex given. The fieldnames are case insensitive. out_fieldname The fields from the file, that are outputted for each record. If the first field listed is begins with ^, then the list that fol- lows are fields NOT to be outputted. BUGS
Be warned that the author has only a shallow understanding of the dpkg packaging system, so there are probably tons of bugs in this pro- gram. This program comes with no warranties. If running this program causes fire and brimstone to rain down upon the earth, you will be on our own. This program accesses the dpkg database directly in places, querying for data that cannot be gotten via dpkg. AUTHOR
Fumitoshi UKAI <ukai@debian.or.jp>. This manual page are based on (or almost copy from :) dpkg-awk(1) manual written by Adam Heath <doo- gie@debian.org> DEBIAN
Debian Utilities DPKG-RUBY(1)
All times are GMT -4. The time now is 01:53 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy