Linux, Why can't I write even though I have group permissions?

Question

I want to create a file in a directory owned by the staff group which I am a member of. Why can I not do this?

bmccann@bmccann-htpc:~$ ls -l /usr/local/lib/R/
t         


        

Answer 1

Check if your parent directory have permission before you add content to that file

sudo chmod -R 777 /yourDir/file.log