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Top Forums Shell Programming and Scripting how can i past environment variables? Post 302311622 by devtakh on Wednesday 29th of April 2009 07:36:22 AM
Old 04-29-2009
Quote:
Originally Posted by mingming88
how about VARIABLE2, how can i use it??
try this:

Code:
if [ "$ASS1_DATA_DIR" ]; then

    VARIABLE1=$ASS1_DATA_DIR
else
    VARIABLE1=$(pwd)
fi
if [ "$ASS1_OUTPUT_DIR" ]; then

    VARIABLE2=$ASS1_OUTPUT_DIR
else
    VARIABLE2=$(pwd)
fi

or

Code:
VARIABLE1=${ASS1_DATA_DIR:- $(pwd)}
VARIABLE2=${ASS1_OUTPUT_DIR :- $(pwd)}

cheers,
Devaraj Takhellambam
 

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pwd(1T) 						       Tcl Built-In Commands							   pwd(1T)

__________________________________________________________________________________________________________________________________________________

NAME
pwd - Return the absolute path of the current working directory SYNOPSIS
pwd _________________________________________________________________ DESCRIPTION
Returns the absolute path name of the current working directory. EXAMPLE
Sometimes it is useful to change to a known directory when running some external command using exec, but it is important to keep the appli- cation usually running in the directory that it was started in (unless the user specifies otherwise) since that minimises user confusion. The way to do this is to save the current directory while the external command is being run: set tarFile [file normalize somefile.tar] set savedDir [pwd] cd /tmp exec tar -xf $tarFile cd $savedDir SEE ALSO
file(1T), cd(1T), glob(1T), filename(1T) KEYWORDS
working directory ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWTcl | +--------------------+-----------------+ |Interface Stability | Uncommitted | +--------------------+-----------------+ NOTES
Source for Tcl is available on http://opensolaris.org. Tcl pwd(1T)
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