Mac case-sensitive

Mac, for some idiotic reason is not case sensitive anymore:

$ echo 'You should see this assigned to abc' > abc ; echo 'and not only this printed twice' > ABC ; cat  abc ABC

and not only this printed twice

and not only this printed twice

In order to work with source code I tried few things, such as USC-C SSD drive formated as case-sensitive, bu tit is too slow.

So I created a new case-sensitive APSF partition using DiskUtility.

$ cd /Volumes/REPO 

REPO $ echo 'You should see this assigned to abc' > abc ; echo 'and not only this printed twice' > ABC ; cat  abc ABC

You should see this assigned to abc

and not only this printed twice