Sponsored Content
Top Forums Shell Programming and Scripting Update a specific line in a file while reading sequentially Post 302421220 by daptal on Thursday 13th of May 2010 10:13:40 PM
Old 05-13-2010
Code:
echo $mask_text
SERVER/USERNAME,PASSWORD

cat abc.txt
Value1
Value2
server1/mylogin,mypasswd
Value3
Value4


sed "s#server1/mylogin,mypasswd#$mask_text#" abc.txt
Value1
Value2
SERVER/USERNAME,PASSWORD
Value3
Value4

If the contents in the file need to be changed use "-i" option

Code:
sed -i "s#server1/mylogin,mypasswd#$mask_text#" abc.txt


HTH,
PL
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

reading specific line from file

Hi all... I not a expert unix script programmer, Kindly adjust. My requirement is that, i have a file which contains the about 10 lines - say 1 2 3 ... 8 war of the worlds: => text in this line 9 9000,80,78,77,334,445 => this line contains some numbers separted by commas 10 ... (10 Replies)
Discussion started by: cool_boss2121
10 Replies

2. Shell Programming and Scripting

Reading from a specific line in a loop

Hello All, Request you to let me know how to do the below urgently.. Requirement File A Contains: for i in file A DEV1 DEV5 STG1 STG5 File B Contains: for j in file B DEV1 DEV5 STG1 STG5 (3 Replies)
Discussion started by: kaushikraman
3 Replies

3. Shell Programming and Scripting

Reading data from a specific line in a text file

hello, I have got the following problem that I am hoping someone can help with please. 1. I have got the following text file (below) , the columns data are 'Test Day', 'Board', 'Betting Number'. TEXT FILE ============================================ 1 3 02-01-27-28-29-30 0 1... (1 Reply)
Discussion started by: jermaine4ever
1 Replies

4. Shell Programming and Scripting

Reading data from a specific line in a text file

Hello, I have a problem which is giving me headache for days, can some please help. Please see code and text fiel below. Please see text in red for the problem I am facing # Program gets an input x from user while read line ; do echo... (4 Replies)
Discussion started by: jermaine4ever
4 Replies

5. Shell Programming and Scripting

[Solved] Problem in reading a file line by line till it reaches a white line

So, I want to read line-by-line a text file with unknown number of files.... So: a=1 b=1 while ; do b=`sed -n '$ap' test` a=`expr $a + 1` $here do something with b etc done the problem is that sed does not seem to recognise the $a, even when trying sed -n ' $a p' So, I cannot read... (3 Replies)
Discussion started by: hakermania
3 Replies

6. UNIX for Dummies Questions & Answers

Reading a specific line from a file

Hi All, I am having 100 lines a text file say a.txt. I want read the 'nth' line from that file inside a script. Kindly tell us how to that. (2 Replies)
Discussion started by: boopathyvasagam
2 Replies

7. Shell Programming and Scripting

Update specific field in a line of text file

I have a text file like this: subject1:LecturerA:10 subject2:LecturerA:40 if I was given string in column 1 and 2 (which are subject 1 and LecturerA) , i need to update 3rd field of that line containing that given string , which is, number 10 need to be updated to 100 ,for example. The... (6 Replies)
Discussion started by: bmtoan
6 Replies

8. Shell Programming and Scripting

Extract specific line in an html file starting and ending with specific pattern to a text file

Hi This is my first post and I'm just a beginner. So please be nice to me. I have a couple of html files where a pattern beginning with "http://www.site.com" and ending with "/resource.dat" is present on every 241st line. How do I extract this to a new text file? I have tried sed -n 241,241p... (13 Replies)
Discussion started by: dejavo
13 Replies

9. Shell Programming and Scripting

awk to update specific value in file with match and add +1 to specific digit

I am trying to use awk to match the NM_ in file with $1 of id which is tab-delimited. The NM_ will always be in the line of file that starts with > and be after the second _. When there is a match between each NM_ and id, then the value of $2 in id is substituted or used to update the NM_. Each NM_... (3 Replies)
Discussion started by: cmccabe
3 Replies
asadmin-delete-instance(1AS)					   User Commands				      asadmin-delete-instance(1AS)

NAME
delete-instance - deletes the instance that is not running. SYNOPSIS
delete-instance [--user admin_user] [--password admin_password] [--host localhost] [--port 4848] [--local=false] [--domain domain_name] [--passwordfile filename] [--secure|-s]instance_name Use the delete-instance command to delete the instance that you specify. The delete-instance command can be run both locally and remotely. To delete the instance locally, not requiring the administration server to be up and running, specify the --local option. To delete the instance remotely, the administration server must be running on the hostname and port number specified. The user authenticates using the password identified for the administration server. Additionally, the instance must already exist within the domain served by the adminis- tration server. Use this command with discretion since it is destructive and there is no undo. OPTIONS
--user administrative user associated for the instance. --password administrative password corresponding to the administrative user. --host host name of the machine hosting the administrative instance. --port administrative port number associated with the administrative host. --domain name of the domain. --local determines if the command should delegate the request to administrative instance or run locally. --passwordfile file containing passwords appropriate for the command (e.g., administrative instance). --secure if true, SSL/TLS to communicate with the administrative instance. OPERANDS
instance_name name of the instance to be deleted. Example 1: Using delete-instance in local mode asadmin> delete-instance --domain domain1 server1 Deleted Instance server1 successfully Where: the server1 instance for the domain1 domain is deleted on the local machine. Example 2: Using delete-instance in remote mode asadmin> delete-instance --user admin --passwordfile passwords.txt --host localhost --port 4848 server1 Deleted Instance server1 successfully Where: the server1 instance for the domain associated with the specified user, passwords in the password file, host, and port number is deleted on the remote machine. EXIT STATUS
0 command executed successfully 1 error in executing the command INTERFACE EQUIVALENT
Server Instance page asadmin-create-instance(1AS), asadmin-start-instance(1AS), asadmin-stop-instance(1AS), asadmin-restart-instance(1AS) J2EE 1.4 SDK March 2004 asadmin-delete-instance(1AS)
All times are GMT -4. The time now is 03:03 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy