what is chown root:root doing? - Unix & Linux Stack Exchange
The command chown root:root changes the user and group of the specified file or directory to user root and group root. I don't know why that answer recommends setting the chowning the directory to root:root. To partially revert the change, use the command. chown mynewuser /home/mynewuser This will at least set the user to mynewuser.
How do I run a command as the system administrator (root)
(The point is to limit the damage if the root password is accidentally leaked to someone.) Logging in as root. If there is a root password set and you are in possession of it, you can simply type root at the login prompt and enter the root password. Be very careful, and avoid running complex applications as root as they might do something you ...
What are the root permissions for a file? - Unix & Linux Stack …
2015年1月30日 · The super user "root" has the ability to access any file on the system. In your example for instance if the file is owned by say bob and the group owner was also bob, then you would see something like this:-r--r-xrw-. 1 bob bob 8 Jan 29 18:39 test.file The 3rd bit group the (rw) would also apply to root, as root being part of the others group ...
linux - What does it mean when a file is owned by the user "root" …
2017年12月20日 · It means that it's the root-user who owns the file and got permission to both read and write it - the owner (root) may also change the file's permission. And that members of the root-group are allowed to read it. Other users can neither read, write nor execute the file. (Since it's a text-file, it's probably little point of executing it anyway.)
root - How does sudo really work? - Unix & Linux Stack Exchange
$ ls -l /usr/bin/sudo -rwsr-xr-x 1 root root 159016 Mar 21 20:40 /usr/bin/sudo The s in the fourth column (where you'd normally find an x on executable files) tells you that the SetUID bit is set. This bit has one significant meaning: When a binary with the SetUID bit set is executed, it does not run with the user ID of the invoking user, but ...
How to change permissions from root user to all users?
2013年11月13日 · If I understand you correctly, fire up a terminal, navigate to one level above that directory, change to root and issue the command: chown -R user:group directory/ This changes the ownership of directory/ (and everything else within it) to the user user and the group group. Many systems add a group named after each user automatically, so you ...
Understanding home folder permission - Unix & Linux Stack …
2015年4月12日 · thisisme@ubuntu:/home$ ls -al total 28 drwxr-xr-x 4 root root 4096 4月 19 2012 . drwxr-xr-x 24 root root 4096 4月 9 12:34 .. drwxr-xr-x 66 thisisme thisisme 4096 4月 12 ...
Unable to delete file, even when running as root
I have come across the following file, which I need to remove from the new machine but am unable to, even when running as root:-rw----- 1 2003 2003 219 jan 11 14:22 .bash_history This file is inside /home/USER/, where USER is the account of the guy who built the machine.
How do file permissions work for the "root" user? - linux
2017年12月21日 · root user is the king of the operating system. If a file or directory have any permission like X for execute but nothing else and some one like Steve user have own the file then root can also execute the file. Always remember, in Linux root can do anything, there is no restrictions on root.
Root /home Directory vs ~ (tilde) - Unix & Linux Stack Exchange
All this is configurable and, theoretically, you could have your system root's home under /home as well, for example /home/root, but this is not recommended. The ~ symbol is just something the shell replaces with the current user's home directory. It is not, per se, a valid path.