Editing Advanced Installation (section)

====Environment variables====
Example configuration for <tt>bash</tt>:
<syntaxhighlight lang="bash">
export RSFROOT=/usr/local/rsf # directory where Madagascar will be installed. 
if [ -n "$PYTHONPATH" ]; then
export PYTHONPATH=${PYTHONPATH}:$RSFROOT/lib
else
export PYTHONPATH=$RSFROOT/lib
fi
export PATH=$RSFROOT/bin:$PATH
export DATAPATH=/var/tmp/
export MANPATH=$RSFROOT/share/man:$(manpath)
export LD_LIBRARY_PATH=$RSFROOT/lib:$LD_LIBRARY_PATH
</syntaxhighlight>
Notice the slash at the end of the <tt>DATAPATH</tt> variable. 

Example configuration for <tt>csh</tt> and <tt>tcsh</tt>:
<pre>
setenv RSFROOT /usr/local/rsf
if ($?PYTHONPATH) then
setenv PYTHONPATH ${PYTHONPATH}:$RSFROOT/lib
else
setenv PYTHONPATH $RSFROOT/lib
endif
set path = ($RSFROOT/bin $path)
setenv DATAPATH /var/tmp/
setenv MANPATH $RSFROOT/share/man:`manpath`
setenv LD_LIBRARY_PATH $RSFROOT/lib:$LD_LIBRARY_PATH
</pre>
Notice the backticks surrounding the call to <tt>manpath</tt>.

Be aware that on some systems /var/tmp gets automatically cleaned at some intervals, so if you want to keep your data binaries for a long time, set <tt>DATAPATH</tt> to another location where you have write access and that allows large files.