Install Vivado HLx 2017.2 WebPACK on Ubuntu
Download Vivado HLx 2017.2: WebPACK and Editions - Linux Self Extracting Web Installer.
Open a terminal and run:
$ chmod +x Xilinx_Vivado_SDK_2017.2_0616_1_Lin64.bin
$ sudo ./Xilinx_Vivado_SDK_2017.2_0616_1_Lin64.bin
Follow instructions until prompted to select edition to install. Select Vivado HL WebPACK
.

Customize your installation. Include Design Tools > Software Development Kit (SDK).

Select the installation directory and follow instructions.

See also