sed -i "s/oldString/newString/g" `grep oldString -rl /path` sed -i "s//CORE/CAD/Xilinx/VIVADO//mnt/vivado-2018/g" `grep /CORE/CAD/Xilinx/VIVADO/Xilinx-2018.3 -rl .`

sed -i "s/oldString/newString/g" `grep oldString -rl /path` sed -i "s//CORE/CAD/Xilinx/VIVADO//mnt/vivado-2018/g" `grep /CORE/CAD/Xilinx/VIVADO/Xilinx-2018.3 -rl .`