how to upgrade cmake version in ubuntu
Go to
https://github.com/Kitware/CMake/releases
select the version that you want to install and click on that. Next copy the link
of .tar.gz file.
open terminal and write
wget link
Example:
wget https://github.com/Kitware/CMake/releases/download/v3.18.4/cmake-3.18.4.tar.gz
Then do this steps according to your version
1) tar zxvf cmake-3.13.4.tar.gz
2) cd cmake-3.13.4
3) sudo ./bootstrap
4) sudo make
5) sudo make install
cmake is installed. check by typing in terminal
cmake --version