Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Need Help!!! For changing the content of the line

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Need Help!!! For changing the content of the line
# 1  
Old 01-15-2012
Need Help!!! For changing the content of the line
I need to change the content of the line after I grep it.

The line is :

Code:
Date SNWD.I-1 (in)  WTEQ.I-1 (in)  PREC.I-1 (in)  TOBS.I-1 (degC)  TMAX.D-1 (degC)  TMIN.D-1 (degC)  TAVG.D-1 (degC)

I want to change the second column (SNWD.I-1(in)) to SNWD.I-1(m), how could I do that?

I use csh script.

Thanks
Last edited by Scott; 01-15-2012 at 02:07 PM.. Reason: Code tags
# 2  
Old 01-15-2012
Let awk "grep" it and change it as well -
Code:
awk '$2=="SNWD.I-1(in)"  {$2="SNWD.I-1(m)"} {print $0}'  inputfile > newfile

# 3  
Old 01-15-2012
Quote:
Originally Posted by jim_mcnamara
Let awk "grep" it and change it as well -
Code:
awk '$2=="SNWD.I-1(in)" {$2="SNWD.I-1(m)"} {print $0}' inputfile > newfile
There are a couple typos in that awk command. First, he has a space between 'SNWD.I-1' and '(in)', so he'll have to change the third field, not second. And the print statement should be inside the previous action, not as a separate one (thus printing each line). Something like this:
Code:
 awk '$2=="SNWD.I-1" {$3="(m)"; print $0}'

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Changing file content in perl

Hi All, I have a file content like this. #<clear_category_list> #<include file="SUITE:Provision-FLEXPONDER_FAC.inc"> #<include file="CAT:SYSTEM:SAS_U23.inc"> #<include file="CAT:PRIORITY:10.inc"> #<include file="CAT:FAC_TYPE:OC48.inc"> #<include file="CAT:FAC_TYPE:OC192.inc">... (2 Replies)
Discussion started by: Syed Imran
2 Replies

2. Shell Programming and Scripting

Help with add new line in between each content

Input file: 48458951 49529947 46700865 46207063 52639785 47012578 55872838 49258996 Desired output file: 48458951 49529947 46700865 46207063 (1 Reply)
Discussion started by: perl_beginner
1 Replies

3. Shell Programming and Scripting

changing files content with sed or awk

Hi, Example File: (jumped, bumped, ) how to jumped, FROM tree; EXIT I have some hundreads of files like this with the different words and I want to remove the comma before the bracket and also I have to remove the comma before FROM word. I am trying to use this command : awk '... (5 Replies)
Discussion started by: rajshashi
5 Replies

4. UNIX for Dummies Questions & Answers

Changing file content based on file header

Hi, I have several text files each containing some data as shown below: File1.txt >DataHeader Data... Data... File2.txt >DataHeader Data... Data... etc. What I want is to change the 'DataHeader' based on the file name. So the output should look like: File1.txt >File1 ... (1 Reply)
Discussion started by: Fahmida
1 Replies

5. Shell Programming and Scripting

Reading several files and summing their content line-by-line

Hey, I am gettin a bit crazy with my script. I have several input datas with the same name (5.ill) in different folders (daysim_01, daysim_02, etc.). The 4. column of each of the data has to be summed with each other and then hass to be written in one new file. So file1: 1 1 0 1 2 1 1 2 ... (7 Replies)
Discussion started by: ergy1983
7 Replies

6. UNIX for Advanced & Expert Users

Search Parameter in first line and replace next line content

Hi, I need help. I have XML file as below &lt;a n=&quot;infoLevel&quot;&gt; &lt;v s=&quot;true&quot;/&gt; &lt;/a&gt; &lt;a n=&quot;localAddr&quot;&gt; &lt;v s=&quot;server.host.com&quot;/&gt; &lt;/a&gt; &lt;a n=&quot;ListenPort&quot;&gt; &lt;v s=&quot;21111&quot;/&gt; &lt;/a&gt; I need to find variable "ListenPort" in line and then replace... (4 Replies)
Discussion started by: rdtrivedi
4 Replies

7. Shell Programming and Scripting

changing line on a file

Hi, I want to change on a file this line: vif = into: vif = But there are some conditionals: 1. last part '] of the original line after 00:16:3E:CE:23:14' ] may vary to 00:16:3E:CE:23:14' ] or 00:16:3E:CE:23:14 ' ] 2. The second mac adrress of the line I need,... (4 Replies)
Discussion started by: iga3725
4 Replies

8. Shell Programming and Scripting

changing colomn to the line

I have a file which has only one colomn of numbers,ex: 122 173 292 400 979 2152 2339 2376 2387 2446 2450 What ksh / unix command should I use to create a file in which those numbers will be in one line,like this 122 173 292 400 979 .... etc Thanks a lot for help (9 Replies)
Discussion started by: aoussenko
9 Replies

9. Shell Programming and Scripting

How to replace a line content

Hi Experts, I have binary files contain an ID Line as: : : $Header: FNDSCMON.fmb 115.6 2000/01/11 10:26:10 pkm ship$ : : where the ID Line format is: $Header: <File_Name> <Version> <Last_update_date_time> pkm ship$ In this Example: File_Name = FNDSCMON.fmb Version = 115.6... (13 Replies)
Discussion started by: victorcheung
13 Replies

10. Shell Programming and Scripting

Changing Line Number of a File

Example: O o x What I would like to do is to rename the first column of the above file without affecting the format. The output should look like the following: Output: O o x #! /bin/ksh cd $HOME/lib/.Lee #nl = no. of lines. nl=`grep 'X' ex | wc -l` #ln = line no. ln=1 (17 Replies)
Discussion started by: ilak1008
17 Replies
Login or Register to Ask a Question