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The Multics shell includes a run command to run a command in an isolated environment. [1] The DEC TOPS-10 [2] and TOPS-20 [3] Command Processor included a RUN command for running executable programs. In the BASIC programming language, RUN is used to start program execution from direct mode, or to start an overlay program from a loader program.
a.out is a file format used in older versions of Unix-like computer operating systems for executables, object code, and, in later systems, shared libraries.This is an abbreviated form of "assembler output", the filename of the output of Ken Thompson's PDP-7 assembler. [1]
On operating systems with a windowing system, such as macOS and desktop Linux distributions, some users may never use the shell directly. On Unix systems, the shell has historically been the implementation language of system startup scripts, including the program that starts a windowing system, configures networking, and many other essential ...
Tiny Core Linux is an example of Linux distribution that run from RAM. This is a list of Linux distributions that can be run entirely from a computer's RAM, meaning that once the OS has been loaded to the RAM, the media it was loaded from can be completely removed, and the distribution will run the PC through the RAM only.
In computing, exec is a functionality of an operating system that runs an executable file in the context of an already existing process, replacing the previous executable. This act is also referred to as an overlay. It is especially important in Unix-like systems, although it also exists elsewhere.
Louis Pouzin created RUNCOM for CTSS circa 1963. [2] He released a paper in 1965 describing a design for the Multics shell which includes a brief description of RUNCOM [3] followed by a second paper he released five days later describing a design for RUNCOM that added commands for control flow, conditional branching and looping.
The shared library init routine is to be run lazily via catching memory faults to its writeable segments (obsolete). 1<<7: 0000_0000_0000_0000_0000_0000_1000_0000: The image is using two-level name space bindings. 1<<8: 0000_0000_0000_0000_0000_0001_0000_0000: The executable is forcing all images to use flat name space bindings. 1<<9
The term user space (or userland) refers to all code that runs outside the operating system's kernel. [2] User space usually refers to the various programs and libraries that the operating system uses to interact with the kernel: software that performs input/output, manipulates file system objects, application software, etc.