after updating to Catalina I was suddenly unable to edit my own ~/.ssh/config. I still can't figure out why not. I could rename it and make a copy, though, and the old one shows this:
-rw-r--r--@ 1 aaaaaaa staff 2571 Sep 15 2017 config~
com.apple.finder.copy.source.checksum#N 4
com.apple.metadata:_kTimeMachineNewestSnapshot 50
com.apple.metadata:_kTimeMachineOldestSnapshot 50
that file remains read-only to me. what is going on?