1. First download the installation you need on the official website, the official website address
2. Upload to the Ubuntu file directory through XShell, and then decompress
Steps:
# 在ubuntu中先创建C_Make文件
mkdir C_Make
#解压
tar -zxvf cmake-3.3.2.tar.gz
When Xshell uploads, the solution to Permission is not allowed appears
#是因为文件夹的权限不够，改变文件夹的权限
chmod 777 C_Make
3. Update g++
sudo apt-get install g++
4. Check if there is cmake
which cmake
If there is an address, it means that it has been installed before, and you can use the following command to uninstall
sudo apt-get remove cmake
5. Enter the decompressed cmake-3.3.2 file
cd cmake-3.3.2
6. Then check
./bootstrap
7. Then you can install openssl
sudo apt-get install libssl-dev
8. Check again
./bootstrap
9. Compile construction
make
10. Install
sudo make install
11. Check version
cmake --version
12. View the installation location
which cmake