How to download and install cmake (latest version) in ubuntu

1>Download cmake form https://cmake.org/download/

Download the (for example) this .sh file

Linux x86_64	cmake-4.4.2-linux-x86_64.sh
	cmake-4.4.2-linux-x86_64.tar.gz
Linux aarch64	cmake-4.4.2-linux-aarch64.sh
	cmake-4.4.2-linux-aarch64.tar.gz

Based on you PC 

2> make that file executable using 

chmod +x <your cmake downloaded file>

3> Run command (for example)

sudo ./cmake-4.4.2-linux-x86_64.sh --prefix=/usr/local