不要删除root用户在其他用户文件夹中创建的文件

Question

I have a user called "sam" and the home directory of sam is /home/sam

Now as a root user i have to keep some files in /home/sam/Desktop directory . and sam should have only read and execute permission he should not delete that file.

not the desktop file will be a soft link of /usr/share/application

steps i have tried :

log in as root cd /home/sam/Desktop echo "test not delete file" > /usr/share/application/abc.txt ln -s /usr/share/application/abc.txt /home/sam/Desktop/abc.txt exit log in as sam rm /home/sam/Desktop/abc.txt Do you want to delete write protected file? y delete success

now how can i prevent it?

Answer 1

使文件不可变：chattr + i /home/sam/Desktop/abc.txt