Is there a “vim runtime log”?

Question

Sometimes I try a customization/command in my vimrc. Everything seens to be correct, but it just doesn\'t work.

It\'s difficult to know what\'s happening when vim st

Answer 1

:messages shows all warnings, errors, and informational messages that appeared (possibly briefly) in the vim statusline.

:echo errmsg prints the most recent error message.

g< is another feature few people know about. From :help g<:

The g< command can be used to see the last page of previous command output. This is especially useful if you accidentally typed at the hit-enter prompt.

For example try :!ls then cancel the prompt, then hit g<.