in Debian 8.32-4+b1 (Debian 11.3) chmod +w isn't working right.
sudo mkdir /etc/whatever sudo touch /etc/whatever/whatever.conf sudo chmod +w /etc/whatever/whatever.conf #doesn't work sudo chmod a+w /etc/whatever/whatever.conf #does work #in man chmod # it states "If none of these are given, the effect is as if (a) were given" # so in conclusion the `sudo chmod +w /etc/whatever/whatever.conf` should work
