I would like to copy all files out of a dir except for one named Default.png. It seems that there are a number of ways to do this. What seems the most effective to you?
Should be as follows:
cp -r !(Default.png) /dest
If copying to a folder nested in the current folder (called example in the case below) you need to omit that directory also:
cp -r !(Default.png|example) /example