This post shows an XSDK 2015.4 source settings64.sh trace. Other script sourcing and environment changes are in bold.
Trace Created With
set -x
source /opt/Xilinx/SDK/2015.4/settings64.sh
XSDK 2015.4 source settings64.sh Trace
+ source /opt/Xilinx/SDK/2015.4/settings64.sh
++ source /opt/Xilinx/SDK/2015.4/.settings64-Software_Development_Kit.sh