Install latest cmake in ubuntu

Option 1:

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http://www.linuxfromscratch.org 

Option 2:

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Get the latest cmake from https://cmake.org/download 

Then do the following after unzipping the source

$cd $CMAKE_DOWNLOAD_PATH
$./configure
$make
$sudo make install

It might not work  if your GCC is old (eg, gcc 4.7) because some functionalities in cmake requires newer gcc (eg, 4.8 or more recent)

Reference