platform/process/src/../../data/test.dat

##</code><code>##

platform/data/test.dat

##</code><code>##

$ readlink -f /tmp/platform/process/src/../../data/test.dat
/tmp/platform/process/data/test.dat

##</code><code>##

platform/process/src/../../data/test.dat

##</code><code>##

platform/process/data/test.dat

##</code><code>##

$ perl -MCwd=realpath -le'print realpath $ARGV[0]' \
    /tmp/platform/process/src/../../data/test.dat
/tmp/platform/process/data/test.dat