Replacing the existing files only Post: 302512904

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Top Forums Shell Programming and Scripting Replacing the existing files only Post 302512904 by shruthidwh on Monday 11th of April 2011 09:48:04 PM

04-11-2011

Registered User

Replacing the existing files only

Hey,

Can someone pls give me an idea on how to write a shell script for the below requirement.

I am generating lot of .txt files in a unix directory through a etl tool, now I need to write a shell script which will move these files to another directory(\abc\xyz\source), but in the \abc\xyz\source same file may exsit , if the file with the same name is exsiting then I need to remove the exsiting file file and replace those files with the newly created file from the ETL tool.

Example:- In my source dir I have the below files.
1.txt
2.txt
3.txt

and in the target directory I have

4.txt
5.txt
3.txt
1.txt

Now I want the shell script to move all the files from source dir and replace the files in the target directory, this replace should happen for only those files which are exsiting in the source dir.so my output should be as below.

1.txt
2.txt -- this should be replaced, i.e existing file should be removed and new file should be placed here.
3.txt -- this should be replaced, i.e existing file should be removed and new file should be placed here.
4.txt
5.txt

Thx,
Shruthi

shruthidwh

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platform::shell

platform::shell(n)					       Tcl Bundled Packages						platform::shell(n)

__________________________________________________________________________________________________________________________________________________

NAME

       platform::shell - System identification support code and utilities

SYNOPSIS

       package require platform::shell ?1.1.4?

       platform::shell::generic shell
       platform::shell::identify shell
       platform::shell::platform shell
_________________________________________________________________

DESCRIPTION

       The platform::shell package provides several utility commands useful for the identification of the architecture of a specific Tcl shell.

       This  package  allows the identification of the architecture of a specific Tcl shell different from the shell running the package. The only
       requirement is that the other shell (identified by its path), is actually executable on the current machine.

       While for most platform this means that the architecture of the interrogated shell is identical to the architecture of  the  running  shell
       this  is  not generally true. A counter example are all platforms which have 32 and 64 bit variants and where a 64bit system is able to run
       32bit code. For these running and interrogated shell may have different 32/64 bit settings and thus different identifiers.

       For applications like a code repository it is important to identify the architecture of the shell which will  actually  run  the  installed
       packages, versus the architecture of the shell running the repository software.

COMMANDS

       platform::shell::identify shell
	      This command does the same identification as platform::identify, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::generic shell
	      This command does the same identification as platform::generic, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::platform shell
	      This command returns the contents of tcl_platform(platform) for the specified Tcl shell.

KEYWORDS

       operating system, cpu architecture, platform, architecture

platform::shell 						       1.1.4							platform::shell(n)