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Top Forums Shell Programming and Scripting Read a number from file and place it back Post 302323916 by dcoolsam on Tuesday 9th of June 2009 10:55:31 AM
Old 06-09-2009
Hey Vinay,
Your task is getting accomplished by just first 3 lines of my code.
Last line is just to print that value.
You can remove that last line : cat a

You check the incremented value in the file.
It will be incremented.

Cheers....Smilie
 

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XEN-LIST-IMAGES(8)					 Perl Programmers Reference Guide					XEN-LIST-IMAGES(8)

NAME
xen-list-images - List all the created and configured Xen images. SYNOPSIS
xen-list-image [options] Help Options: --help Show this scripts help information. --manual Read this scripts manual. --version Show the version number and exit. Testing options: --test Specify an alternate Xen configuration directory. OPTIONS
--help Show the scripts help information. --manual Read the manual. --test This flag causes the script to load the Xen configuration files from a different directory than the default of /etc/xen. --version Show the version number and exit. DESCRIPTION
xen-list-images is a simple script which will display all the Xen images which have been created. This works by iterating over all files matching the pattern /etc/xen/*.cfg which is what the xen-create-image script would create. For each instance which has been created we'll display the name, and then either the IP address configured, or "DHCP" to denote a dynamic host. TODO
It should be possible to determine the disk(s) used by the images, and then display their sizes. AUTHORS
Steve Kemp, http://www.steve.org.uk/ StA~Xphane Jourdois LICENSE
Copyright (c) 2005-2009 by Steve Kemp, (c) 2010 by The Xen-Tools Development Team. All rights reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The LICENSE file contains the full text of the license. 4.3.1 2012-06-30 XEN-LIST-IMAGES(8)
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