I am using this file matching in gulp:
\'content/css/*.css\'
But I would like to only include the files that do not start
You can add a second glob whitch will filter files or folders with an underscore.
For ignore folders I use:
gulp.src(['./src/**/*.html', '!**/_*/**'])
'!**/_*/**' will filter folders that start with an underscore.
'!**/_*/**'