A friend of mine set permissions on a file that he owns to 0070. He's in the group. Basically, he wants the group to have rwx, but not the file owner. When he tries to cat or vi the file, he gets permission denied. Do the user bits have to be set for the file owner in order for group members to read and write the file?
chmod 0070 test.txt cat test.txt cat: test.txt: Permission denied chmod 0670 test.txt cat test.txt test 123