Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Shell script to overwrite a file
Top Forums Shell Programming and Scripting Shell script to overwrite a file Post 302827279 by Karthick N on Friday 28th of June 2013 11:12:37 AM
Old 06-28-2013
Hi thanks for the reply,

But if it s ls -ltr > listed , the file will be created once, after which it throws a error if we run run the script next time. this script will be daily cron, so is there any other way to overwrite the file??


Karthick
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

overwrite specific lines in a file

Hi all, I am trying to overwrite some lines of a very big file. I know the number of the line but I don't know how to point the cursor on its beginning. there is an option to notice the offset in lines? thanks! (7 Replies)
Discussion started by: csecnarf
7 Replies

2. UNIX Desktop Questions & Answers

shell overwrite lines in a file

Hello, I have an external file (file.txt). This shall be a kind of a config file for my shell script. I get the line numbers as to a corresponding entry by grep. Now I would like to substitute the corresponding line from the shell script back to the file and exactly on the same line number. ... (4 Replies)
Discussion started by: ACTGADE
4 Replies

3. Shell Programming and Scripting

Overwrite a running shell script

Hello all, This might be a dumb question...but i am running into this situation. I have a shell script that is currently in running state. It has big sql's in it and will run for few days. What happens if I change the shell now? Eg: a.shl is running and i want to mv b.shl a.shl I... (5 Replies)
Discussion started by: gsjdrr
5 Replies

4. Shell Programming and Scripting

Unable to overwrite but can delete file

I'm debugging a ksh script written by someone else that does the following: It runs a command and redirects stdout to a file called dberror that already exists using ">". This command fails with the following error: The file access permissions do not allow the specified action. dberror:... (1 Reply)
Discussion started by: savage66
1 Replies

5. UNIX for Dummies Questions & Answers

overwrite file in multiple folders

I need to update the contents of a file that exists in several hundred folders. I'm on a mac. Can I use Terminal to execute a linux/unix command that will accomplish the overwriting of the file? (2 Replies)
Discussion started by: webguy262
2 Replies

6. Shell Programming and Scripting

Need to overwrite shell script using vi editor

I have an existing shell script that I am trying to modify. I have about 10 lines of info I want to overwrite using text someone emailed to me. I guess what I am trying to do basically is like a copy/paste, but it's not working for me. I am using Cygwin and vi editor. I open the script and... (4 Replies)
Discussion started by: kimberlyg2007
4 Replies

7. UNIX for Dummies Questions & Answers

Overwrite a Source Script Variable Value

Hello All, How do i overwrite a sourced script variable value. Sourced Script: GEN_PARAM_LIST4=""$LOG_DIR"/dwh_GenerateXMLFile.lst" GEN_PARAM_LIST4_v2=""$LOG_DIR"/dwh_GenerateXMLFile.v2.lst" I am using below statement for replacing. Script2: &&... (1 Reply)
Discussion started by: Ariean
1 Replies

8. Shell Programming and Scripting

Script to overwrite & before that keep copy a file on many servers

I have ssh password less auth enable & script does the job well as well #/bin/bash for i in `cat ip` do scp /etc/resolv.conf root@$ip done But I need to take backup of the file i will overwrite .. is there any simple way ? Kindly respond (5 Replies)
Discussion started by: heman96
5 Replies

9. Shell Programming and Scripting

Overwrite file every day

Hi Friends, I have written a script to capture system performance every hour and redirected to output file. How to overwrite the file every next day? Thanks Suresh (4 Replies)
Discussion started by: suresh3566
4 Replies

10. Shell Programming and Scripting

How to Undo overwrite file in UNIX?

Hi, Could anyone please advise if its possible in unix to undo the changes for a file that has been overwrriten. By mistake i have overwritten a file and now i need the original file, is there a way? Please Help!!! (2 Replies)
Discussion started by: mail.chiranjit
2 Replies

LEARN ABOUT DEBIAN

dwww-refresh-cache

DWWW-REFRESH-CACHE(8)						      Debian						     DWWW-REFRESH-CACHE(8)

NAME

       dwww-refresh-cache - rebuilds dwww cache directory

SYNOPSIS

       dwww-refresh-cache

DESCRIPTION

       dwww-refresh-cache  is  a  simple  shell  script,  which  deletes  outdated  cache  files and rebuilds contents of the dwww cache directory
       /var/cache/dwww.  In default installation, the script is called from /etc/cron.daily/dwww, so the cache is refreshed every day.

CONFIGURATION VARIABLES

       DWWW_KEEPDAYS
	      Specifies, how many days documents that have not been accessed should be kept in the cache.  Default is 10 days.

       DWWW_QUICKFIND_DB
	      Location	of  the  installed  packages  and  programs  cache  file,  generated  with  help   of	dwww-quickfind(8).    Default	is
	      /var/cache/dwww/quickfind.dat.

       DWWW_DOCBASE2PKG_DB
	      Location	of  the  cache	file,  which  maps installed doc-base files to packages names, used by the dwww-build-menu(8).	Default is
	      /var/cache/dwww/docbase2pkg.dat.

FILES

       /etc/dwww/dwww.conf
	      Configuration file for dwww(7).

       /var/cache/dwww
	      dwww cache directory.

       /etc/cron.daily/dwww.
	      dwww daily cron job

SEE ALSO

       dwww(7), dwww-build-menu(8), dwww-cache(8), dwww-find(8).

AUTHOR

       Robert Luberda.
       See dwww(7), for copyrights and stuff.

dwww 1.11.1							February 15th, 2009					     DWWW-REFRESH-CACHE(8)
All times are GMT -4. The time now is 08:52 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy