Visit Our UNIX and Linux User Community

Top Forums Shell Programming and Scripting To find char field and replace null Post 302841365 by Scott on Wednesday 7th of August 2013 08:49:13 AM
Old 08-07-2013
$ awk 'BEGIN {FS=OFS="|" } $3 ~ /xx/ { $3="" }1' file

Test Your Knowledge in Computers #510
Difficulty: Easy
Variable names cannot be the same as any reserved word as the language would not be able to distinguish between them.
True or False?

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

find pattern and replace another field

HI all I have a problem, I need to replace a field in a file, but only in the lines that have some pattern, example: 100099C01101C00000000059394200701CREoperadora_TX 100099C01201C00000000000099786137OPERADORA_TX2 in the example above I need to change the first field from 1 to 2 only if... (3 Replies)
Discussion started by: sergiioo
3 Replies

2. UNIX for Dummies Questions & Answers

Find and replace a field in the last line

I have a file 'test.out' with contents: 1|1|10|10|I|asdf| 2|1|10|10|I|sdfg| 4|1|10|10|I|hgfj| 34|0|10|10|I|sdg| I want to modify the fifth column with value 'I' to 'A' for only the last line. Below is what I expect to see: 1|1|10|10|I|asdf| 2|1|10|10|I|sdfg| ... (3 Replies)
Discussion started by: ChicagoBlues
3 Replies

3. Shell Programming and Scripting

Replace 4th field if null

Hi .. Can some one please suggest me how to replace 4th field(column) of a .csv file with "NA" if it is null. Input file data: |A|21|B1||1.1| |A|21|C|RAGH|1.1| |A|21|D1||1.1| |A|21|C|YES|1.1 Expected Output |A|21|B1|NA|1.1| |A|22|C|RAGH|1.1| |B|23|D1|NA|1.1| |A|24|C|YES|1.1| Thank... (4 Replies)
Discussion started by: pasupuleti81
4 Replies

4. 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

5. Shell Programming and Scripting

Find and replace blank in the last field

Hi all, I have a huge file and I need to get ride of the fields 6-11 and replace the blanks in field 5 with a missing value(99999). 159,93848,5354,343,67898,45,677,5443,434,5545,45 677,45545,3522,244, 554,54344,3342,456, 344,43443,2344,444,23477... (12 Replies)
Discussion started by: GoldenFire
12 Replies

6. Shell Programming and Scripting

Find field count and replace

Hello All, I have a file with contents like apple|ball|charlie|David| England|France|Germany| Ireland|Japan|King|London| Man|Nancy|Orange| here the column delimiter is | so if any of the lines/rows in the file has 3 only records (last field is empty), i want to place a | at the end of... (4 Replies)
Discussion started by: vinredmac
4 Replies

7. Shell Programming and Scripting

Find and replace all extended char.

Hi Guys, I wand find and replace all Extended ASCII Codes from all my log files. My Log files: /home/Kalr/PPool/Output i have logs file in sub dir. /home/Kalr/PPool/Output/X /home/Kalr/PPool/Output/Y /home/Kalr/PPool/Output/Z My Abc.log file input: Extended ASCII Codes :€“ ... (4 Replies)
Discussion started by: asavaliya
4 Replies

8. Shell Programming and Scripting

Replace a field where values are null in a file.

Hi, I've a pipe delimited file and wanted to replace the 3rd field to 099990 where the values are null. How can I achieve it using awk or sed. 20130516|00000061|02210|111554|03710|2|205069|SM APPL $80-100 RTL|S 20130516|00000061|02210|111554|03710|2|205069|SM APPL $80-100 RTL|S... (12 Replies)
Discussion started by: rudoraj
12 Replies

9. Shell Programming and Scripting

Find a blank field and replace values to NA

Hi All, i have a file like col1 col2 col3 13 24 NA 12 13 14 11 12 13 14 22 NA 18 26 NA in this file if i found "NA" other values in the line are also replace by NA Could you help me! (7 Replies)
Discussion started by: Shenbaga.d
7 Replies
IGAWK(1)							 Utility Commands							  IGAWK(1)

igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins ( Free Software Foundation Nov 3 1999 IGAWK(1)

Featured Tech Videos

All times are GMT -4. The time now is 07:13 PM.
Unix & Linux Forums Content Copyright 1993-2020. All Rights Reserved.
Privacy Policy