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vim tips and tricks

variables

Here's how to show, set, and reset vim's variables:

:set            - shows vars different from defaults
:set all        - shows all values
:set foo?       - shows the value of foo
:set foo+=opt   - add opt to the value w/o changing others
:set foo-=opt   - remove opt from value
:set foo&       - reset foo to default value
:setlocal foo   - only the current buffer

:verbose set foo?   - tells you where it was last set!