Linux, Ubuntu command line:
1. create a file “mytest” (use touch to do this) 2. check the permissions on the file 3, set the permission to user = all, group = none, other/world-none; using (r,w,x, 4. now add read permission to those in the same group 5. now make sure that the file is readable by all, but that no user (including yourself can delete it. 6. Verify this by trying to
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