Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Update a specific field in file with Variable value based on other Key Word
Top Forums Shell Programming and Scripting Update a specific field in file with Variable value based on other Key Word Post 303015088 by infernalhell on Tuesday 27th of March 2018 02:31:28 PM
Old 03-27-2018
Update a specific field in file with Variable value based on other Key Word
I have an input file with

A=xyz
B=pqr

I would want the value in Second Field (xyz or pqr) updated with a value present in Shell Variable based on the value passed in the first field. (A or B )

while read line
do
NEW_VALUE = `some functionality done on $line`
If $line=First Field- update 'xyz' with $NEW_VALUE
done < File_Name

File_Name contains
A
B
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Update a field in a file based on condition

Hi i am new to scripting. i have a file file.dat with content as : CONTENT_STORAGE PERCENTAGE FLAG: /storage_01 64% 0 /storage_02 17% 1 I need to update the value of FLAG for a particular CONTENT_STORAGE value I have written the following code #!/bin/sh threshold=20... (1 Reply)
Discussion started by: kichu
1 Replies

2. Shell Programming and Scripting

Combine multiple lines in file based on specific field

Hi, I have an issue to combine multiple lines of a file. I have records as below. Fields are delimited by TAB. Each lines are ending with a new line char (\n) Input -------- ABC 123456 abcde 987 890456 7890 xyz ght gtuv ABC 5tyin 1234 789 ghty kuio ABC ghty jind 1234 678 ght ... (8 Replies)
Discussion started by: ratheesh2011
8 Replies

3. Shell Programming and Scripting

Update specific field in a line of text file

I have a text file like this: subject1:LecturerA:10 subject2:LecturerA:40 if I was given string in column 1 and 2 (which are subject 1 and LecturerA) , i need to update 3rd field of that line containing that given string , which is, number 10 need to be updated to 100 ,for example. The... (6 Replies)
Discussion started by: bmtoan
6 Replies

4. Shell Programming and Scripting

File Parsing based on a character in a specific field

Hi All, I'm having a hard time finding a starting point for my issue. I have a 30k line file (fspsec.txt) that I would like to parse into smaller files based on any character existing in field 1. ACCOUNTANT LEVEL 1 (ACCT.ACCOUNTANT) OPERATORS: DOEJO (418) TOOLS: Branch Maintenance ... (2 Replies)
Discussion started by: aahlrich
2 Replies

5. Shell Programming and Scripting

awk to update field file based on match

If $1 in file1 matches $2 in file2. Then the value in $2 of file2 is updated to $1"."$2 of file2. The awk seems to only match the two files but not update. Thank you :). awk awk 'NR==FNR{A ; next} $1 in A { $2 = a }1' file1 file2 file1 name version NM_000593 5 NM_001257406... (3 Replies)
Discussion started by: cmccabe
3 Replies

6. Shell Programming and Scripting

awk to update field in file based of match in another

I am trying to use awk to match two files that are tab-delimited. When a match is found between file1 $1 and file2 $4, $4 in file2 is updated using the $2 value in file1. If no match is found then the next line is processed. Thank you :). file1 uc001bwr.3 ADC uc001bws.3 ADC... (4 Replies)
Discussion started by: cmccabe
4 Replies

7. Shell Programming and Scripting

awk to update value in field based on another field

In the tab-delimeted input file below I am trying to use awk to update the value in $2 if TYPE=ins in bold, by adding the value of HRUN= in italics. In the below since in line 1 TYPE=ins the 117282541 value in $2 has 6 added because that is the value of HRUN=. Hopefully the awk is a start but I... (2 Replies)
Discussion started by: cmccabe
2 Replies

8. Shell Programming and Scripting

Perl to update field in file based of match to another file

In the perl below I am trying to set/update the value of $14 (last field) in file2, using the matching NM_ in $12 or $9 in file2 with the NM_ in $2 of file1. The lengths of $9 and $12 can be variable but what is consistent is the start pattern will always be NM_ and the end pattern is always ;... (4 Replies)
Discussion started by: cmccabe
4 Replies

9. Shell Programming and Scripting

Perl to update field based on a specific set of rules

In the perl below, which does execute, I am having trouble with the else in Rule 3. The digit in f{8} is extracted and used to update f accordinly along with the value in f. There can be either - * or + before the number that is extracted but the same logic applies, that is if the value is greater... (5 Replies)
Discussion started by: cmccabe
5 Replies

10. Shell Programming and Scripting

awk to assign points to variables based on conditions and update specific field

I have been reading old posts and trying to come up with a solution for the below: Use a tab-delimited input file to assign point to variables that are used to update a specific field, Rank. I really couldn't find too much in the way of assigning points to variable, but made an attempt at an awk... (4 Replies)
Discussion started by: cmccabe
4 Replies

LEARN ABOUT SUSE

mail::field::generic

Mail::Field::Generic(3) 				User Contributed Perl Documentation				   Mail::Field::Generic(3)

NAME

       Mail::Field::Generic - implementation for inspecific fields

INHERITANCE

	Mail::Field::Generic
	  is a Mail::Field

SYNOPSIS

	use Mail::Field;
	my $field = Mail::Field->new('Subject', 'some subject text');
	my $field = Mail::Field->new(subject => 'some subject text');

DESCRIPTION

       A generic implementation for header fields without own implementation. This is fine for fields like "Subject", "X-Mailer", etc., where the
       field holds only a string of no particular importance/format.

METHODS

   Constructors
       Mail::Field::Generic->combine(FIELDS)

	   See "Constructors" in Mail::Field

       Mail::Field::Generic->extract(TAG, HEAD [, INDEX ])

	   See "Constructors" in Mail::Field

       Mail::Field::Generic->new(TAG [, STRING | OPTIONS])

	   See "Constructors" in Mail::Field

   "Fake" constructors
       $obj->create(OPTIONS)

	Option--Default
	Text	''

	   . Text => STRING

       $obj->parse([STRING])

	   Set the new text, which is empty when no STRING is provided.

   Accessors
       $obj->set(OPTIONS)

	   See "Accessors" in Mail::Field

       $obj->stringify

	   See "Accessors" in Mail::Field

       $obj->tag

       Mail::Field::Generic->tag

	   See "Accessors" in Mail::Field

   Smart accessors
       $obj->text([STRING])

	   See "Smart accessors" in Mail::Field

DETAILS

DIAGNOSTICS

       Error: Undefined subroutine <method> called

	   Mail::Field objects use autoloading to compile new functionality.  Apparently, the mehod called is not implemented for the specific
	   class of the field object.

SEE ALSO

       This module is part of the MailTools distribution, http://perl.overmeer.net/mailtools/.

AUTHORS

       The MailTools bundle was developed by Graham Barr.  Later, Mark Overmeer took over maintenance without commitment to further development.

       Mail::Cap by Gisle Aas <aas@oslonett.no>.  Mail::Field::AddrList by Peter Orbaek <poe@cit.dk>.  Mail::Mailer and Mail::Send by Tim Bunce
       <Tim.Bunce@ig.co.uk>.  For other contributors see ChangeLog.

LICENSE

       Copyrights 1995-2000 Graham Barr <gbarr@pobox.com> and 2001-2007 Mark Overmeer <perl@overmeer.net>.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.  See
       http://www.perl.com/perl/misc/Artistic.html

perl v5.12.1							    2010-01-26						   Mail::Field::Generic(3)
All times are GMT -4. The time now is 03:49 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy