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Full Discussion: simple check to see if a folder exists
Top Forums Shell Programming and Scripting simple check to see if a folder exists Post 302137710 by psyman on Wednesday 26th of September 2007 11:29:28 AM
Old 09-26-2007
simple check to see if a folder exists
Hi, I have cobbled together a simple script to create a Windows folder in a bunch of home folders on a mac server using the following code.

Code:
for i in /Volumes/student_data/studenthomefolders/*
do
u=`echo $i | cut -d/ -f5`
//if [ -d $i/Windows ]
//then
//echo "Folder already exists for "$u" Skipping"
//else
echo "Making Windows Dir for "$u
mkdir $i/Windows
echo "Changing Ownership of Windows Directory for "$u
chown $u $i/Windows
echo "Setting Mode for Windows Folder for "$u
chmod 700 $i/Windows
done

The commented out part is my attempt to add a check to see if that folder already exists and to skip the creation and manipulation if it does but my scripting knowledge is limited and that code returns an error.

If I run the script after creating a new user it currently runs through all of them, fails to create the existing ones but still chmods and chowns them, while this is not a massive problem I would like a neater script, anyone point me in the right direction.

Preferably it would silently skip existing ones and just report the new creations.

Many thanks in advance
 

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LEARN ABOUT MOJAVE

datetime::timezone::local::win32

DateTime::TimeZone::Local::Win32(3)			User Contributed Perl Documentation		       DateTime::TimeZone::Local::Win32(3)

NAME

       DateTime::TimeZone::Local::Win32 - Determine the local system's time zone on Windows

VERSION

       version 1.63

SYNOPSIS

	 my $tz = DateTime::TimeZone->new( name => 'local' );

	 my $tz = DateTime::TimeZone::Local->TimeZone();

DESCRIPTION

       This module provides methods for determining the local time zone on a Windows platform.

HOW THE TIME ZONE IS DETERMINED

       This class tries the following methods of determining the local time zone:

       o   $ENV{TZ}

	   It checks $ENV{TZ} for a valid time zone name.

       o   Windows Registry

	   When using the registry, we look for the Windows time zone and use a mapping to translate this to an Olson time zone name.

	   o	   Windows Vista and 2008

		   We look in "SYSTEM/CurrentControlSet/Control/TimeZoneInformation/" for a node named "/TimeZoneKeyName". If this exists, we use
		   this key to look up the Olson time zone name in our mapping.

	   o	   Windows NT, Windows 2000, Windows XP, Windows 2003 Server

		   We look in "SOFTWARE/Microsoft/Windows NT/CurrentVersion/Time Zones/" and loop through all of its sub keys.

		   For each sub key, we compare the value of the key with "/Std" appended to the end to the value of
		   "SYSTEM/CurrentControlSet/Control/TimeZoneInformation/StandardName". This gives us the English name of the Windows time zone,
		   which we use to look up the Olson time zone name.

	   o	   Windows 95, Windows 98, Windows Millenium Edition

		   The algorithm is the same as for NT, but we loop through the sub keys of "SOFTWARE/Microsoft/Windows/CurrentVersion/Time
		   Zones/"

AUTHOR

       Dave Rolsky <autarch@urth.org>

COPYRIGHT AND LICENSE

       This software is copyright (c) 2013 by Dave Rolsky.

       This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

perl v5.18.2							    2013-10-28				       DateTime::TimeZone::Local::Win32(3)
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