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sets read, write, and execute permissions for user, and sets read permission for Group and Others: chmod 1755 findReslts.sh: Sets sticky bit (this suggests that the script be retained in memory), sets read, write, and execute permissions for owner, and sets read and execute permissions for group and others chmod 4755 setCtrls.sh
The read permission grants the ability to read a file. When set for a directory, this permission grants the ability to read the names of files in the directory, but not to find out any further information about them such as contents, file type, size, ownership, permissions. The write permission grants the ability to modify a file. When set for ...
These entries are known as access-control entries (ACEs) in the Microsoft Windows NT, [4] OpenVMS, and Unix-like operating systems such as Linux, macOS, and Solaris. Each accessible object contains an identifier to its ACL. The privileges or permissions determine specific access rights, such as whether a user can read from, write to, or execute ...
any permission may be set (read, write, execute) 1: setting of execute permission is prohibited (read and write) 2: setting of write permission is prohibited (read and execute) 3: setting of write and execute permission is prohibited (read only) 4: setting of read permission is prohibited (write and execute) 5
In Unix and Unix-like systems, including POSIX-conforming systems, each file has a 'mode' containing 9 bit flags controlling read, write and execute permission for each of the file's owner, group and all other users (see File-system permissions §Traditional Unix permissions for more details) plus the setuid and setgid bit flags and a 'sticky' bit flag.
A core security feature in these systems is the file system permissions. All files in a typical Unix filesystem have permissions set enabling different access to a file. Unix permissions permit different users access to a file with different privilege (e.g., reading, writing, execution).
Inodes store information about files and directories (folders), such as file ownership, access mode (read, write, execute permissions), and file type. The data may be called stat data, in reference to the stat system call that provides the data to programs. The inode number indexes a table of inodes on the file system.
Users (owners) have under this DAC implementation the ability to make policy decisions and/or assign security attributes. A straightforward example is the Unix file mode which represent write, read, and execute in each of the 3 bits for each of User, Group and Others. (It is prepended by another bit that indicates additional characteristics).