Git: how to ignore hidden files / dot files / files with empty file names via .gitignore? [duplicate]

Question

These files should all be ignored:

.weirdBackupFileType
.travis.yml

The following files should not be ignored:

_.weirdBackupFileType
Z.travis.yml

Answer 1

If you want to ignore all dotfiles, add this in your .gitignore file (If it doesn't exist, add it)

.*
!.gitignore

Answer 2

Your answer is very simple:

This is the content of your .gitignore file:

# ignore those files 
.weirdBackupFileType
.travis.yml

#DONOT ignore those files (this is what the ! is for - un ignore files)
!_.weirdBackupFileType
!Z.travis.yml

And that's it.

In the image you can see that i have created the file and after adding it to the .gitignore they are not in the status any more.