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Top Forums UNIX for Dummies Questions & Answers Need help with setting up environment variables Post 302388812 by SSSB on Thursday 21st of January 2010 01:58:10 PM
Old 01-21-2010
Bug Need help with setting up environment variables

hi all,
I would appreciate if some one could explain me the difference between setting up the variables as shown below

Code:
HOME=${HOME:-"/home/user1"}

Code:
HOME=/home/user1

 

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xdg-user-dir(1) 						   User Commands						   xdg-user-dir(1)

NAME
xdg-user-dir - Get the path used for desktop user directory location. SYNOPSIS
xdg-user-dir DIR DESCRIPTION
xdg-user-dir is a utility that extracts the location of the specified desktop user directory from the file : ${HOME}/.config/user-dirs.dirs OPERANDS
Valid desktop directories (DIR) are: DESKTOP DOWNLOAD TEMPLATES PUBLICSHARE DOCUMENTS MUSIC PICTURES VIDEOS If an invalid directory is requested ${HOME} is returned. ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables: HOME. Other environment variable that are used are: XDG_CONFIG_HOME Base directory for storge of XDG configuration files. Defaults to ${HOME}/.config FILES
The following files are used by this application: /usr/bin/xdg-user-dir XDG Directory expansion utility. ${XDG_CONFIG_HOME}/user-dirs.dirs Location of the user-specific configuration including the current list of directories and what they map to. EXAMPLES
Example 1: Location of user's documents directory % xdg-user-dir DOCUMENTS /home/user/Documents ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWxdg-user-dirs | +-----------------------------+-----------------------------+ |Interface stability |Uncommitted | +-----------------------------+-----------------------------+ SEE ALSO
More information can be found at: http://www.freedesktop.org/wiki/Software/xdg-user-dirs xdg-user-dirs-update(1), xdg-user-dirs-gtk-update(1), attributes(5) NOTES
Written by Darren Kenny, Sun Microsystems Inc, 2008 SunOS 5.11 03 Apr 2008 xdg-user-dir(1)
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