regarding environment variables in cygwin

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Old 10-05-2007
regarding environment variables in cygwin

I have a problem with cygwin.

when i start the cygwin from command prompt using 'start c:\cygwin\cygwin.bat' , cygwin started and if i run the cygwin from oracle using java procedure, cygwin started but there is a difference in envirnment variables.

Now, i want to know from where these environment variables are loaded?

iam using cygwin on window xp and it is a stand alone system.
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File::Spec::Win32(3pm)					 Perl Programmers Reference Guide				    File::Spec::Win32(3pm)

File::Spec::Win32 - methods for Win32 file specs SYNOPSIS
require File::Spec::Win32; # Done internally by File::Spec if needed DESCRIPTION
See File::Spec::Unix for a documentation of the methods provided there. This package overrides the implementation of these methods, not the semantics. devnull Returns a string representation of the null device. tmpdir Returns a string representation of the first existing directory from the following list: $ENV{TMPDIR} $ENV{TEMP} $ENV{TMP} SYS:/temp C:system emp C:/temp /tmp / The SYS:/temp is preferred in Novell NetWare and the C:system emp for Symbian (the File::Spec::Win32 is used also for those platforms). Since Perl 5.8.0, if running under taint mode, and if the environment variables are tainted, they are not used. case_tolerant MSWin32 case-tolerance depends on GetVolumeInformation() $ouFsFlags == FS_CASE_SENSITIVE, indicating the case significance when comparing file specifications. Since XP FS_CASE_SENSITIVE is effectively disabled for the NT subsubsystem. See Default: 1 file_name_is_absolute As of right now, this returns 2 if the path is absolute with a volume, 1 if it's absolute with no volume, 0 otherwise. catfile Concatenate one or more directory names and a filename to form a complete path ending with a filename canonpath No physical check on the filesystem, but a logical cleanup of a path. On UNIX eliminated successive slashes and successive "/.". On Win32 makes dir1dir2dir3....dir4 -> dirdir4 and even dir1dir2dir3...dir4 -> dirdir4 splitpath ($volume,$directories,$file) = File::Spec->splitpath( $path ); ($volume,$directories,$file) = File::Spec->splitpath( $path, $no_file ); Splits a path into volume, directory, and filename portions. Assumes that the last file is a path unless the path ends in '\', '\.', '\..' or $no_file is true. On Win32 this means that $no_file true makes this return ( $volume, $path, '' ). Separators accepted are and /. Volumes can be drive letters or UNC sharenames (\servershare). The results can be passed to "catpath" to get back a path equivalent to (usually identical to) the original path. splitdir The opposite of catdir(). @dirs = File::Spec->splitdir( $directories ); $directories must be only the directory portion of the path on systems that have the concept of a volume or that have path syntax that differentiates files from directories. Unlike just splitting the directories on the separator, leading empty and trailing directory entries can be returned, because these are significant on some OSs. So, File::Spec->splitdir( "/a/b/c" ); Yields: ( '', 'a', 'b', '', 'c', '' ) catpath Takes volume, directory and file portions and returns an entire path. Under Unix, $volume is ignored, and this is just like catfile(). On other OSs, the $volume become significant. Note For File::Spec::Win32 Maintainers Novell NetWare inherits its File::Spec behaviour from File::Spec::Win32. COPYRIGHT
Copyright (c) 2004,2007 by the Perl 5 Porters. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
See File::Spec and File::Spec::Unix. This package overrides the implementation of these methods, not the semantics. perl v5.18.2 2014-01-06 File::Spec::Win32(3pm)