Sponsored Content
Top Forums Shell Programming and Scripting Replace pipe delimited column string to null Post 302898373 by express14 on Monday 21st of April 2014 09:59:31 PM
Old 04-21-2014
Replace pipe delimited column string to null

Hi All,

I have a large dat file where each lines are pipe delimited values. I need to parse the file depending on the request. For example: sometimes I have told to remove all the values in the 7th column (this case remove values '3333' only from the first line and '3543' from the second line) from the file. As the file contains thousands of lines, I need to find a way that can be done easily. I know it can be done by sed or perl but with my limited knowledge I am not able to figured it out.

Note that from time to time I need to remove values from nth column.

Input:
Code:
123456|ABC|Y||89575|456.7|3333|2014||A|
465273|SDE||N|46238||3543|1923|X|N|

Output:
Code:
123456|ABC|Y||89575|456.7||2014||A|
465273|SDE||N|46238|||1923|X|N|

Any help is greatly appreciated!

Last edited by Don Cragun; 04-22-2014 at 01:05 AM.. Reason: Add CODE tags.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Grep for NULL in a pipe delimited file

hi, How can I check for a field in a pipe-delimited file having a NULL value in Unix using a grep command or any other command. Please reply (5 Replies)
Discussion started by: sureshg_sampat
5 Replies

2. UNIX for Dummies Questions & Answers

Search and replace string only in a particular column in a delimited file

I have file with multiple columns. Column values for a record may be same. Now i have to replace a column value(this can be same for the other columns) with new value. File.txt A,B,C,D,A,B,C,D,A,B,C,D A,B,C,D,A,B,C,D,A,B,C,D A,B,C,D,A,B,C,D,A,B,C,D A,B,C,D,A,B,C,D,A,B,C,D... (1 Reply)
Discussion started by: ksailesh
1 Replies

3. Shell Programming and Scripting

Find and replace a column that has '' to NULL in a comma delimited using awk or sed

Hi this is my first time posting ever. I'm relatively new in using AWK/SED, I've been trying many a solution. I'm trying to replace the 59th column in a file where if I encounter '' then I would like to replace it with the word NULL. example 0 , '' , '' , 0 , 195.538462 change it to 0... (5 Replies)
Discussion started by: gumal901
5 Replies

4. Shell Programming and Scripting

count of null in pipe delimited txt file

Hi, I have a pipe delimited txt file which contains 17 fields per line/row. 16th field contains email id. I want to count the number of lines/rows that contains null in the 16th field. Plz find attached example data file. I'm looking for a command line/script which achieves this. ... (5 Replies)
Discussion started by: Sriranga
5 Replies

5. Homework & Coursework Questions

how to show particular column from pipe delimited file

hi, I have pipe delimited flat file as below 1|ab|4.5|9| 2|ac|3|12| 3|ac|4.5|8| i want to show (display) only 3rd field between pipes. please help (1 Reply)
Discussion started by: vai15517
1 Replies

6. Shell Programming and Scripting

Find for line with not null values at nth place in pipe delimited file

Hi, I am trying to find the lines in a pipe delimited file where 11th column has not null values. Any help is appreciated. Need help asap please. thanks in advance. (3 Replies)
Discussion started by: manikms
3 Replies

7. Shell Programming and Scripting

Replace specific column range in a non-delimited file with a string!

Hi All, I will need an help with respect to replacing a range of columns on a non-delimited file using a particular string pattern. Say file input is MYNUMBERD000000-BAN CHUE INSNTS ** N+ MYAREDSDD000000+BAN CHUE INSNTS ** N+ MYDERFFFSD00000-GIR PENT - ACH ** ... (5 Replies)
Discussion started by: navojit dutta
5 Replies

8. Shell Programming and Scripting

Replacing a column in a pipe delimited file

Hi, I have a pipe delimited file as below and I need to replace the 2nd column of each line with null values. 1|10/15/2011|fname1|lname1 2|10/15/2012|fname2|lname2 3|10/15/2013|fname3|lname3 Output file: 1||fname1|lname1 2||fname2|lname2 3||fname3|lname3 I tried this ... (2 Replies)
Discussion started by: member2014
2 Replies

9. UNIX for Dummies Questions & Answers

Check for not null column in a pipe delimited file

Hi, I have a requirement where I have to check whether the mandatory columns in a pipe delimited file is null and print error message. For eg, I have to check if the 3rd,5th,6th,7th and 8th column are null and print the message "<column name> is null". The data file will have aroung 100,000... (6 Replies)
Discussion started by: reshma15193
6 Replies

10. Shell Programming and Scripting

Replace delimiter for a particular column in a pipe delimited file

I have an input file as below Emp1|FirstName|MiddleName|LastName|Address|Pincode|PhoneNumber 1234|FirstName1|MiddleName2|LastName3| Add1 || ADD2|123|000000000 Output : 1234|FirstName1|MiddleName2|LastName3| Add1 ,, ADD2|123|000000000 OR 1234,FirstName1,MiddleName2,LastName3, Add1 ||... (2 Replies)
Discussion started by: styris
2 Replies
COLUMN(1)						    BSD General Commands Manual 						 COLUMN(1)

NAME
column -- columnate lists SYNOPSIS
column [-tx] [-c columns] [-s sep] [file ...] DESCRIPTION
The column utility formats its input into multiple columns. Rows are filled before columns. Input is taken from file operands, or, by default, from the standard input. Empty lines are ignored. The options are as follows: -c Output is formatted for a display columns wide. -s Specify a set of characters to be used to delimit columns for the -t option. -t Determine the number of columns the input contains and create a table. Columns are delimited with whitespace, by default, or with the characters supplied using the -s option. Useful for pretty-printing displays. -x Fill columns before filling rows. ENVIRONMENT
The COLUMNS, LANG, LC_ALL and LC_CTYPE environment variables affect the execution of column as described in environ(7). EXIT STATUS
The column utility exits 0 on success, and >0 if an error occurs. EXAMPLES
(printf "PERM LINKS OWNER GROUP SIZE MONTH DAY " ; printf "HH:MM/YEAR NAME " ; ls -l | sed 1d) | column -t SEE ALSO
colrm(1), ls(1), paste(1), sort(1) HISTORY
The column command appeared in 4.3BSD-Reno. BUGS
Input lines are limited to LINE_MAX (2048) bytes in length. BSD
July 29, 2004 BSD
All times are GMT -4. The time now is 11:18 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy