permissions issues writing to /proc
25920
Redirecting stdout to a file you don't have write permission on
66222
'sudo' not working after changing the permissions of '/usr' directory
72314
File permissions and saving
81093
Changing permissions in fstab in order to allow writing in Windows NTFS partition
41831
Permissions issues for shared directory on a server
114113
Cannot access a directory with permissions drw-rw-r--
102960
How do file permissions work for the "root" user?
106046
How do I programmatically change file permissions?
77987
Why is proc called a file system?
57713
How to copy files into /usr/local/? (permission denied)
133686
Is it possible to create a directory and file inside /proc/sys?
129198
Group permissions for root not working in /tmp
50538
Why does chmod +w not give write permission to other(o)
77293
How can I reset permissions on (sub)folders under Windows Vista?
135538
How to make items copied into a folder respect its permissions?
18906
Can a file be edited with the 'write' permission on it but not on its parent directory?
75745
Understanding permissions properly for cp