How do i clear all except one variable?

I want to clear all variables except one

entering all variable to be cleared is a lengthy process, has many variables and function

Answer 1

[Walter Roberson]

clearvars -except NAME

[Pedapudi Bharath Raja Bhoopal]

Thankyou it worked

clearvars -except X     %deletes all variables except X in workspace

[Matthew Creek]

Here are some links to related documentation:

clearvars Function Reference Page

Example from clearvars Function Reference Page