Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: search pattern and replace x-y characters in nth line after every match
Top Forums Shell Programming and Scripting search pattern and replace x-y characters in nth line after every match Post 302537287 by neutronscott on Thursday 7th of July 2011 02:59:52 PM
Old 07-07-2011
This will work for a line, maybe more details will help me...

replace.sh:
Code:
#!/usr/bin/awk -f
FNR==1 { fnum++ }
/^HEADER$/ {h=1;l=0}
h {l++}
l==3 && fnum==1 { p1=$0; next }
l==3 && fnum==2 { print p1; next }
fnum==2 { print $0 }

Code:
[mute@geek ~/test]$ cat fileA
HEADER
some kinda of data aAAaaa
this is the new data aaAAAA
more data etc aaaa

[mute@geek ~/test]$ cat fileB
HEADER
some kinda of data in BBBB
this is the old data bbBBBb
more data etc bBBbBB

[mute@geek ~/test]$ ./replace.sh fileA fileB
HEADER
some kinda of data in BBBB
this is the new data aaAAAA
more data etc bBBbBB

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

sed - Replace Line which contains the Pattern match with a new line

I need to replace the line containing "STAGE_DB" with the line "STAGE_DB $DB # database that contains the table being loaded ($workingDB)" Here $DB is passed during the runtime. How can I do this? Thanks, Kousikan (2 Replies)
Discussion started by: kousikan
2 Replies

2. Shell Programming and Scripting

Search word in a line and print earlier pattern match

Hi All, I have almost 1000+ files and I want to search specific pattern. Looking forwarded your input. Search for: word1.word2 (Which procedure contain this word, I need procedure name in output. Expected output: procedure test1 procedure test2 procedure test3 procedure test4 ... (7 Replies)
Discussion started by: susau_79
7 Replies

3. Shell Programming and Scripting

Getting filename for Nth line pattern match

Hi, I have many scripts in particular directory. And few of the scripts have exit 0 in second line. Now i wanted to list out the scripts name which has the exit 0 in its second line I tried many options , but i can not get the filename along with the nth line pattern match :mad:. Can anyone... (14 Replies)
Discussion started by: puni
14 Replies

4. Shell Programming and Scripting

pattern match and replace another pattern in same line

I have a pattern username:x:32005:32006::/usr/local/user:/bin/bash I need to match the line containing username and replace /bin/bash with /usr/local/my/bin/noshell So it becomes username:x:32005:32006::/usr/local/user:/usr/local/my/bin/noshell (7 Replies)
Discussion started by: anilcliff
7 Replies

5. Shell Programming and Scripting

Help with replace line based on specific pattern match

Input file data20714 7327 7366 detail data20714 7327 7366 main data250821 56532 57634 detail data250821 57527 57634 main data250821 57359 57474 main data250821 57212 57301 main data250821 57140 57159 detail data250821 56834 57082 main data250821 56708 56779 main ... (3 Replies)
Discussion started by: perl_beginner
3 Replies

6. UNIX for Dummies Questions & Answers

Printing nth and n+1th line after a pattern match

Hi , I want to print the nth and n+1 lines from a file once it gets a pattern match. For eg: aaa bbb ccc ddd gh jjjj If I find a match for bbb then I need to print bbb as well as 3rd and 4th line from the match.. Please help..Is it possible to get a command using sed :) (6 Replies)
Discussion started by: saj
6 Replies

7. Shell Programming and Scripting

I need to know how to replace a line after a pattern match with an empty line using SED

Hi How Are you? I am doing fine! I need to go now? I will see you tomorrow! Basically I need to replace the entire line containing "doing" with a blank line: I need to the following output: Hi How Are you? I need to go now? I will see you tomorrow! Thanks in advance.... (1 Reply)
Discussion started by: sags007_99
1 Replies

8. Shell Programming and Scripting

awk to search for specific line and replace nth column

I need to be able to search for a string in the first column and if that string exists than replace the nth column with "-9.99". AW12000012012 2.38 1.51 3.01 1.66 0.90 0.91 1.22 0.82 0.57 1.67 2.31 3.63 0.00 AW12000012013 1.52 0.90 1.20 1.34 1.21 0.67 ... (14 Replies)
Discussion started by: ncwxpanther
14 Replies

9. Shell Programming and Scripting

Rearrange or replace only the second line after pattern match or pattern match

Im using the command below , but thats not the output that i want. it only prints the odd and even numbers. awk '{if(NR%2){print $0 > "1"}else{print $0 > "2"}}' Im hoping for something like this file1: Text hi this is just a test text1 text2 text3 text4 text5 text6 Text hi... (2 Replies)
Discussion started by: invinzin21
2 Replies

10. Shell Programming and Scripting

How to display when nth line match a pattern?

Hi All, I have sample of listing as following Database 2 entry: Database alias = PXRES Database name = PXRES Local database directory = /db2/data1/db2phnx Database release level = d.00 Comment ... (3 Replies)
Discussion started by: ckwan
3 Replies

LEARN ABOUT BSD

ident

IDENT(1)						      General Commands Manual							  IDENT(1)

NAME

       ident - identify files

SYNOPSIS

       ident file ...

DESCRIPTION

       Ident searches the named files for all occurrences of the pattern $keyword:...$, where keyword is one of

	       Author
	       Date
	       Header
	       Locker
	       Log
	       Revision
	       Source
	       State

       These patterns are normally inserted automatically by the RCS command co (1), but can also be inserted manually.

       Ident works on text files as well as object files.  For example, if the C program in file f.c contains

	       char rcsid[] = "$Header:  Header information $";

       and f.c is compiled into f.o, then the command

	       ident  f.c  f.o

       will print

	       f.c:
		       $Header:  Header information $
	       f.o:
		       $Header:  Header information $

IDENTIFICATION

       Author: Walter F. Tichy, Purdue University, West Lafayette, IN, 47907.
       Revision Number: 3.0 ; Release Date: 82/12/04 .
       Copyright (C) 1982 by Walter F. Tichy.

SEE ALSO

       ci (1), co (1), rcs (1), rcsdiff(1), rcsintro (1), rcsmerge (1), rlog (1), rcsfile (5).
       Walter  F. Tichy, "Design, Implementation, and Evaluation of a Revision Control System," in Proceedings of the 6th International Conference
       on Software Engineering, IEEE, Tokyo, Sept. 1982.

BUGS

Purdue University						      6/29/83								  IDENT(1)
All times are GMT -4. The time now is 07:16 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy