How to create a command in vim that accesses the current filename?

Question

I would like to create an individual vim command that does the following:

Currently I have to do it like this:

:w

:! python3 {filename}

Instead, I would like to do this:

:pyRun

or something similar

:set autowrite and you can just do :!python3 % without having to :w first. — melpomene
– melpomene, Commented Mar 17, 2019 at 15:09

rkta · Accepted Answer · 2019-03-17 20:01:01Z

You can chain commands with |. So

:w | ! python3 %

will save the buffer and run it with python3.

See :help :bar and :help c_% for more information.

You can create a command for this like:

:command PyRun execute 'w <bar> ! python3 %'

Note that custom commands in vim have to start with an uppercase letter.

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