Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: read space filled file and replace text at specific position
Top Forums Shell Programming and Scripting read space filled file and replace text at specific position Post 302186476 by aigles on Thursday 17th of April 2008 10:32:32 AM
Old 04-17-2008
awk -v new="$chrg" '
. . .
Code:
' input file

Run AWK, the executed program in ' . . .', the input file is inputfile and the variable new is defined.
Code:
substr($0, 17, 3) == "RT3" {


. . . .
}

Select lines with RT3 in pos 17 (length 3), and execute { . . . . }
Code:
if (substr($0, 2651, 18) ~ /^[0-9]* *$/) 
   printf("%s%-18.18s%s\n", substr($0, 1, 2650), new, substr($0, 2669));

If the record contains digits and spaces at position 2651 (length 18), print
the record with value of variable new in position 2651 (length 18).

next

Proceed next record

1

Print record (records without RT3)


jean-Pierre.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

search and replace a specific text in text file?

I have a text file with following content (3 lines) filename : output.txt first line:12/12/2008 second line:12/12/2008 third line:Y I would like to know how we can replace 'Y' with 'N' in the 3rd line keeping 1st and 2nd lines same as what it was before. I tried using cat output.txt... (4 Replies)
Discussion started by: santosham
4 Replies

2. Shell Programming and Scripting

Using sed to replace specific character and specific position

I am trying to use sed to replace specific characters at a specific position in the file with a different value... can this be done? Example: File: A0199999123 A0199999124 A0199999125 Need to replace 99999 in positions 3-7 with 88888. Any help is appreciated. (5 Replies)
Discussion started by: programmer22
5 Replies

3. Shell Programming and Scripting

Sed position specific replace

I'm drawing a blank on how to use sed to replace selectively based on position in the string (vs nth occurence): hello.|there.|how.|are.|you.| I want the period removed in the 3rd item (as defined by the pipe delimiter) if a period is present. So the result in this case would be: ... (2 Replies)
Discussion started by: tiggyboo
2 Replies

4. Shell Programming and Scripting

remove white space from specific columns in text file

Hello i have a text file like this: 1 AB AC AD EE 2 WE TR YT WW 3 AS UY RF YT the file is bigger , but that's an example of the data what i want to do is to merge all columns together except the first one, it will become like this : 1 ABACADEE 2 WETRYTWW 3 ASUYRFYT (8 Replies)
Discussion started by: shelladdict
8 Replies

5. UNIX for Dummies Questions & Answers

How do you view specific columns from a space delimited text file?

I have a space delimited text file with 1,000,000+ columns? I would only like to view specific ones (let's say through 1:10), how can I do that? Thanks! (3 Replies)
Discussion started by: evelibertine
3 Replies

6. Shell Programming and Scripting

Using sed to replace a string in a specific position

I asked this before, but my problem got more complicated. Heres what I am trying to do: I'm trying to replace a string at a certain location with another string. Heres the file I'm trying to change: \E I want to replace the escape code at the 3rd line, 2nd column with this escape code... (3 Replies)
Discussion started by: tinman47
3 Replies

7. Shell Programming and Scripting

position specific replace in file

How to replace the position specific values in the file.. i searched a lot the forums but i couldn't able to do... i have file like below 576666666666666666666666666 7878 897987 121 0asdas Y12 5900fbb 777 09JJJ 78798347892374 234234234364 234232898 89HJHIHIGIUG989902743748327khjkhkjlh... (6 Replies)
Discussion started by: greenworld123
6 Replies

8. Shell Programming and Scripting

Find and replace with 0 for characters in a specific position

Need command for position based replace: I need a command to replace with 0 for characters in the positions 11 to 20 to all the lines starts with 6 in a file. For example the file ABC.txt has: abcdefghijklmnopqrstuvwxyz 6abcdefghijklmnopqrstuvwxyz abcdefghijklmnopqrstuvwxyz... (4 Replies)
Discussion started by: thangabalu
4 Replies

9. Shell Programming and Scripting

How to read data from tab delimited file after a specific position?

Hi Experts, I have a tab deliminated file as below myfile.txt Local Group Memberships *Administrators *Guests I need data in below format starting from 4th position. myfile1.txt Administrators Guests the above one is just an example and there could... (15 Replies)
Discussion started by: Litu1988
15 Replies

10. Post Here to Contact Site Administrators and Moderators

Search for a pattern and replace a space at specific position with a Character in File

In file, we have millions of records each of 1000 in length. And at specific position say 800 there is a space, we need to replace it with Character X if the ID in that row starts with 123. So far i have used the below which is replacing space at that position to X but its not checking for... (3 Replies)
Discussion started by: Jagmeet Singh
3 Replies

LEARN ABOUT DEBIAN

colorgccrc

COLORGCCRC(5)							File Formats Manual						     COLORGCCRC(5)

NAME

       colorgccrc - configuration file for colorgcc

DESCRIPTION

       A colorgccrc configuration file is used to configure the highlighting of the compiler output from colorgcc.

SYNTAX

       Each  line  consists  of  a  keyword  designating  a configuration variable.  The keyword is followed by `:' and then one or several values
       (depending on the keyword).  Lines beginning with a hash mark `#' are comments.

CONFIGURATION VARIABLES

       g++ | gcc | c++ | cc | g77 | gcj | gnat | gpc
	      Specifies the paths to the compilers.  Takes one value; a path to the compiler.

       nocolor
	      Specifies what terminal types colorization should be disabled on.  Takes one or several values, separated by whitespace.

       srcColor
	      Specifies the highlighting attributes source-code should be given.  Takes one or several color attributes.  See  the  section  COLOR
	      ATTRIBUTES for more information.

       introColor
	      Specifies  the  highlighting  attributes	for normal compiler output.  Takes one or several color attributes.  See the section COLOR
	      ATTRIBUTES for more information.

       warningFileNameColor | errorFileNameColor
	      Specifies the highlighting attributes for the filename in a  warning  or	an  error,  respectively.   Takes  one	or  several  color
	      attributes.  See the section COLOR ATTRIBUTES for more information.

       warningNumberColor | errorNumberColor
	      Specifies  the  highlighting  attributes	for  the  line-number  in a warning or an error, respectively.	Takes one or several color
	      attributes.  See the section COLOR ATTRIBUTES for more information.

       warningMessageColor | errorMessageColor
	      Specifies the highlighting attributes for the message-text in a warning or an error,  respectively.   Takes  one	or  several  color
	      attributes.  See the section COLOR ATTRIBUTES for more information.

COLOR ATTRIBUTES

       The following attributes are valid for highlighting.

       clear, reset

       bold, underline, underscore, blink, reverse, concealed

       black, red, green, yellow, blue, magenta, cyan, white

       on_black, on_red, on_green, on_yellow, on_blue, on_magenta, on_cyan, on_white

SEE ALSO

       gcc(1), colorgcc(1)

HISTORY

       Jan 15 2003: Initial version of this manual-page.

REPORTING BUGS

       Report bugs to <jmoyers@geeks.com>

AUTHORS

       Jamie Moyers <jmoyers@geeks.com> is the author of colorgcc.

       This  manual  page  was	written  by Joe Wreschnig <piman@sacredchao.net>, and modified by David Weinehall <tao@debian.org>, for the Debian
       GNU/Linux system (but may be used by others).

COPYRIGHT

       Copyright (C) 2003 Jamie Moyers
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

								   Jan 15, 2003 						     COLORGCCRC(5)
All times are GMT -4. The time now is 06:35 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy