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The Unix command su, which stands for 'substitute user' [1] [2] (or historically 'superuser' [3] [4]), is used by a computer user to execute commands with the privileges of another user account. When executed it invokes a shell without changing the current working directory or the user environment.
.su is an Internet country code top-level domain (ccTLD) that was designated for the Union of Soviet Socialist Republics (USSR) on 19 September 1990. [2] Even though the Soviet Union itself was dissolved 15 months later, the .su top-level domain remains in use to the present day.
The center of SU(n) is isomorphic to the cyclic group /, and is composed of the diagonal matrices ζ I for ζ an n th root of unity and I the n × n identity matrix. Its outer automorphism group for n ≥ 3 is Z / 2 Z , {\displaystyle \mathbb {Z} /2\mathbb {Z} ,} while the outer automorphism group of SU(2) is the trivial group .
In Unix-like computer OSes (such as Linux), root is the conventional name of the user who has all rights or permissions (to all files and programs) in all modes (single- or multi-user). Alternative names include baron in BeOS and avatar on some Unix variants. [2] BSD often provides a toor ("root" written backward) account in addition to a root ...
.su, country code top-level domain for the Soviet Union; su (Unix), the substitute user command Seismic Unix, a collection of seismic data processing tools; Subscriber unit, any radio device used to connect to a high-speed network access point
SuperSU is a discontinued proprietary Android application that can keep track of the root permissions of apps, after the Android device has been rooted. [2] [3] SuperSU is generally installed through a custom recovery such as TWRP. [4] SuperSU includes the option to undo the rooting. [5] SuperSU cannot always reliably hide the rooting. [6]
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As a security and auditing feature, sudo may be configured to log each command run. When a user attempts to invoke sudo without being listed in the configuration file, an exception indication is presented to the user indicating that the attempt has been recorded. If configured, the root user will be alerted via mail. By default, an entry is ...