Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Search for a string and replace the searched string in the same position in samefile
Top Forums UNIX for Dummies Questions & Answers Search for a string and replace the searched string in the same position in samefile Post 302291261 by Whiteboard on Wednesday 25th of February 2009 05:57:43 AM
Old 02-25-2009
Code:
$ cat tab.txt
00000000 0 +00000000.00 2008/12/29 11:06:04 0108/12/29 10:05:37 00521363
 
$ awk '{sub(/^../,"20",$6); print}' OFS="\t" tab.txt
00000000        0       +00000000.00    2008/12/29      11:06:04        2008/12/29      10:05:37        00521363

$ cat samp.txt
00000000        0       +00000000.00    2008/12/29      11:06:04        0108/12/29

$ awk '{sub(/^../,"20",$6); print}' samp.txt
00000000 0 +00000000.00 2008/12/29 11:06:04 2008/12/29

$ awk '{sub(/^../,"20",$6); print}' OFS="\t" samp.txt
00000000        0       +00000000.00    2008/12/29      11:06:04        2008/12/29


Hope you can understand the above code with sample examples.....
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Find the position of a string and replace with another string

Hi, I have a file named "Test_2008_01_21" The file contains a string "manual" that occurs many times in the file How can i find the positions of the string "manual" in the file Ex: if the string " manual " occurs three times in the file. i want to replace the second occurance of string... (6 Replies)
Discussion started by: bab123
6 Replies

2. Shell Programming and Scripting

Search for a string and replace the searched string in the same position

Hi All, My requisite is to search for the string "0108"(which is the year and has come in the wrong year format) in a particular column say 4th column in a tab delimited file and then replace it with 2008(the correct year format) in the same position where 0108 was found..The issue is the last... (15 Replies)
Discussion started by: ganesh_248
15 Replies

3. Shell Programming and Scripting

Search, replace string in file1 with string from (lookup table) file2?

Hello: I have another question. Please consider the following two sample, tab-delimited files: File_1: Abf1 YKL112w Abf1 YAL054c Abf1 YGL234w Ace2 YKL150w Ace2 YNL328c Cup9 YDR441c Cup9 YDR442w Cup9 YEL040w ... File 2: ... ABF1 YKL112W ACE2 YLR131C (9 Replies)
Discussion started by: gstuart
9 Replies

4. UNIX for Dummies Questions & Answers

Search a string in the file and then replace another string after that position

Hi I am looking for a particular string in a file.If the string exists, then I want to replace another string with some other text.Once replaced, search for the same text after that character position in the file. :wall: E.g: Actual File content: Hello Name: Nitin Raj Welcome to Unix... (4 Replies)
Discussion started by: dashing201
4 Replies

5. Shell Programming and Scripting

sed or awk command to replace a string pattern with another string based on position of this string

here is what i want to achieve... consider a file contains below contents. the file size is large about 60mb cat dump.sql INSERT INTO `table1` (`id`, `action`, `date`, `descrip`, `lastModified`) VALUES (1,'Change','2011-05-05 00:00:00','Account Updated','2012-02-10... (10 Replies)
Discussion started by: vivek d r
10 Replies

6. Shell Programming and Scripting

Search a string in a text file and add another string at the particular position of a line

I am having a text file which is having more than 200 lines. EX: 001010122 12000 BIB 12000 11200 1200003 001010122 2000 AND 12000 11200 1200003 001010122 12000 KVB 12000 11200 1200003 In the above file i want to search for string KVB and add/replace... (1 Reply)
Discussion started by: suryanarayana
1 Replies

7. Shell Programming and Scripting

Search String and extract few lines under the searched string

Need Assistance in shell programming... I have a huge file which has multiple stations and i wanted to search particular station and extract few lines from it and the rest is not needed Bold letters are the stations . The whole file has multiple stations . Below example i wanted to search... (4 Replies)
Discussion started by: ajayram_arya
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. UNIX for Dummies Questions & Answers

Search for a string,delete the line and replace with new string in a file

Hi Everyone, I have a requirement in ksh where i have a set of files in a directory. I need to search each and every file if a particular string is present in the file, delete that line and replace that line with another string expression in the same file. I am very new to unix. Kindly help... (10 Replies)
Discussion started by: Pradhikshan
10 Replies

10. UNIX for Beginners Questions & Answers

Search partial string in a file and replace the string - UNIX

I have the below string which i need to compare with a file and replace this string in the file which matches closely. Can anyone help me on this. string(Scenario 1)- user::r--,user::ourfrd:r-- String(Scenario 2)- user::r-- File **** # file: /local/Desktop/myfile # owner: me # group:... (6 Replies)
Discussion started by: sarathy_a35
6 Replies

LEARN ABOUT DEBIAN

dahdi_diag

dahdi_diag(8)						      System Manager's Manual						     dahdi_diag(8)

NAME

       dahdi_diag -- Dump DAHDI channel parameters

SYNOPSIS

       dahdi_diag channel

DESCRIPTION

       dahdi_diag  asks  the kernel to dump parameters for DAHDI channel no.  channel to the kernel logs. You will be able to see them using, e.g.
       dmesg(1).

OPTIONS

       channel
	      The number of the DAHDI channel whose parammeters should be dumped.  May be any DAHDI channel (even if it is open).

EXAMPLE

	 # /tmp/dahdi_diag 5
	 # dmesg | tail -n 15
	 Dump of DAHDI Channel 5 (XPP_BRI_TE/00/01/1,5,2):

	 flags: 501 hex, writechunk: c5190948, readchunk: c5190954
	 rxgain: ccad2e80, txgain: ccad2e80, gainalloc: 0
	 span: c48a900c, sig: 80 hex, sigcap: 80 hex
	 inreadbuf: -1, outreadbuf: 0, inwritebuf: 0, outwritebuf: -1
	 blocksize: 160, numbufs: 4, txbufpolicy: 0, txbufpolicy: 0
	 txdisable: 0, rxdisable: 0, iomask: 0
	 curzone: c78e7000, tonezone: 0, curtone: 00000000, tonep: 0
	 digitmode: 0, txdialbuf: , dialing: 0, aftdialtimer: 0, cadpos. 0
	 confna: 0, confn: 0, confmode: 0, confmute: 0
	 ec: 00000000, echocancel: 0, deflaw: 0, xlaw: ccab5e80
	 echostate: 00, echotimer: 0, echolastupdate: 0
	 itimer: 0, otimer: 0, ringdebtimer: 0

SEE ALSO

       dahdi_cfg(8), asterisk(8), dmesg(1).

AUTHOR

       This manual page was written by Tzafrir Cohen <tzafrir.cohen@xorcom.com> Permission is granted to copy, distribute and/or modify this docu-
       ment under the terms of the GNU General Public License, Version 2 any later version published by the Free Software Foundation.

       On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.

								    2008-01-07							     dahdi_diag(8)
All times are GMT -4. The time now is 02:05 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy