Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: position specific replace in file
Top Forums Shell Programming and Scripting position specific replace in file Post 302600729 by greenworld123 on Wednesday 22nd of February 2012 01:55:13 AM
Old 02-22-2012
It worked thx...
Can you explain me the command

---------- Post updated at 01:55 AM ---------- Previous update was at 01:46 AM ----------

I have one more query in second part of sed

Code:
sed '/^5900/s/\(^.\{4\}\).\{13\}\(.*\)/\1some123text\2/' inputfile

How do i can insert another condition into the above command
Example:
in the same line i have to check wther the 30th position is R or S or V
i mean below is the condition

1)The should starts with 5900
2)The 30 position is R or S or V .. then i have to change to some text
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

read space filled file and replace text at specific position

Hi I have a spaced filled file having records like below: What I want is to read line having RT3 at position 17-19 then go to position 2651 check the 18 characters (might be space filled till 18 characters). This position should have a... (6 Replies)
Discussion started by: COD
6 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

Add characters at specific position in file

Hello I want to add some value at the specific position. My file has data like Hello Welcome to UNIX Forums Need Assistance I want to add some value at the end but at same character position for all lines. I want my output file to have data like : Here '_' represents blanks.... (3 Replies)
Discussion started by: dashing201
3 Replies

4. 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

5. 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

6. Shell Programming and Scripting

Awk command to replace specific position characters.

Hi, I have a fixed width file. The way this file works is say for example there are 30 columns in it each with different sizes say 10,5,2, etc... If data in a field is less than the field size the rest of it is loaded with spaces. I would like an awk command to that would replace I have... (8 Replies)
Discussion started by: pinnacle
8 Replies

7. 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

8. Shell Programming and Scripting

Search for a string at a particular position and replace with blank based on position

Hi, I have a file with multiple lines(fixed width dat file). I want to search for '02' in the positions 45-46 and if available, in that lines, I need to replace value in position 359 with blank. As I am new to unix, I am not able to figure out how to do this. Can you please help me to achieve... (9 Replies)
Discussion started by: Pradhikshan
9 Replies

9. 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

10. Shell Programming and Scripting

Count specific character of a file in each line and delete this character in a specific position

I will appreciate if you help me here in this script in Solaris Enviroment. Scenario: i have 2 files : 1) /tmp/TRANSACTIONS_DAILY_20180730.txt: 201807300000000004 201807300000000005 201807300000000006 201807300000000007 201807300000000008 2)... (10 Replies)
Discussion started by: teokon90
10 Replies

LEARN ABOUT LINUX

shtool-subst

SHTOOL-SUBST.TMP(1)					      GNU Portable Shell Tool					       SHTOOL-SUBST.TMP(1)

NAME

       shtool-subst - GNU shtool sed(1) substitution operations

SYNOPSIS

       shtool subst [-v|--verbose] [-t|--trace] [-n|--nop] [-w|--warning] [-q|--quiet] [-s|--stealth] [-i|--interactive] [-b|--backup ext]
       [-e|--exec cmd] [-f|--file cmd-file] [file] [file ...]

DESCRIPTION

       This command applies one or more sed(1) substitution operations to stdin or any number of files.

OPTIONS

       The following command line options are available.

       -v, --verbose
	   Display some processing information.

       -t, --trace
	   Enable the output of the essential shell commands which are executed.

       -n, --nop
	   No operation mode. Actual execution of the essential shell commands which would be executed is suppressed.

       -w, --warning
	   Show warning on substitution operation resulting in no content change on every file. The default is to show a warning on substitution
	   operations resulted in no content change on all files.

       -q, --quiet
	   Suppress warning on substitution operation resulting in no content change.

       -s, --stealth
	   Stealth operation. Preserve timestamp on file.

       -i, --interactive
	   Enter interactive mode where the user has to approve each operation.

       -b, --backup ext
	   Preserve backup of original file using file name extension ext.  Default is to overwrite the original file.

       -e, --exec cmd
	   Specify sed(1) command directly.

       -f, --file cmd-file
	   Read sed(1) command from file.

EXAMPLE

	#   shell script
	shtool subst -i -e 's;(c) ([0-9]*)-2000;(c) 1-2001;' *.[ch]

	#    RPM spec-file
	%install
	    shtool subst -v -n 
		-e 's;^(prefix=).*;1 $RPM_BUILD_ROOT%{_prefix};g' 
		-e 's;^(sysconfdir=).*;1 $RPM_BUILD_ROOT%{_prefix}/etc;g' 
		`find . -name Makefile -print`
	    make install

HISTORY

       The GNU shtool subst command was originally written by Ralf S.  Engelschall <rse@engelschall.com> in 2001 for GNU shtool.  It was prompted
       by the need to have a uniform and convenient patching frontend to sed(1) operations in the OpenPKG package specifications.

SEE ALSO

       shtool(1), sed(1).

18-Jul-2008							   shtool 2.0.8 					       SHTOOL-SUBST.TMP(1)
All times are GMT -4. The time now is 12:07 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy