These are my personal configs for CSGO in game and for practice.
There is nothing special, I just want to prevent to cases needing a backup.
Cheers.
You can't auto exec, the name is a community standard.
Locate the folder:
<Your computer location for Steam>/userdata/<your-user-id>/730/local/config/
Place the file autoexec.cfg
with the name of your choice.
In the in game console type:
exec autoexec
Note: autoexec
is the name of the file. If you change it, you will execute as exec <name-you-choosed>
You may load it in game just as autoexec.cfg
or use it as resource for copy/pasting during practice.