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The current Linux manual pages for su define it as "substitute user", [9] making the correct meaning of sudo "substitute user, do", because sudo can run a command as other users as well. [10] [11] Unlike the similar command su, users must, by default, supply their own password for
One solution is a "shadow" password file to hold the password hashes separate from the other data in the world-readable passwd file. For local files, this is usually /etc/shadow on Linux and Unix systems, or /etc/master.passwd on BSD systems; each is readable only by root. (Root access to the data is considered acceptable since on systems with ...
Apple says that System Integrity Protection is a necessary step to ensure a high level of security. In one of the WWDC developer sessions, Apple engineer Pierre-Olivier Martel described unrestricted root access as one of the remaining weaknesses of the system, saying that "[any] piece of malware is one password or vulnerability away from taking full control of the device".
Sudo command on Ubuntu to temporarily assume root privileges. Most Unix and Unix-like systems have an account or group which enables a user to exact complete control over the system, often known as a root account. If access to this account is gained by an unwanted user, this results in a complete breach of the system.
Background execution allows a shell to run a command without user interaction in the terminal, freeing the command line for additional work with the shell. POSIX shells and other Unix shells allow background execution by using the & character at the end of command.
LILO—Linux Loader; LIP—Loop Initialization Primitive; LISP—LISt Processing; LKML—Linux Kernel Mailing List; LM—Lan Manager; LOC—Lines of Code; LPC—Lars Pensjö C; LPI—Linux Professional Institute; LPT— Line Print Terminal; LRU—Least Recently Used; LSB—Least Significant Bit; LSB—Linux Standard Base; LSI—Large-Scale ...
Because Android is based on a modified version of the Linux kernel, rooting an Android device gives access to administrative permissions similar to those on Linux or any other Unix-like operating system such as FreeBSD or macOS. Rooting is often performed to overcome limitations that carriers and hardware manufacturers put on some devices.
The gecos field, or GECOS field, is a field in each record in the /etc/passwd file on Unix and similar operating systems.On UNIX, it is the 5th of 7 fields in a record. It is typically used to record general information about the account or its user(s) such as their real name and phone number.