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SIGHUP

Index SIGHUP

On POSIX-compliant platforms, SIGHUP ("signal hang up") is a signal sent to a process when its controlling terminal is closed. [1]

31 relations: Apache HTTP Server, C preprocessor, C signal handling, Communication protocol, Computer program, Computer terminal, Configuration file, Daemon (computing), Data Carrier Detect, Disown (Unix), Include directive, Inter-process communication, Interrupt, Job control (Unix), Kill (command), KornShell, Linux distribution, Linux Documentation Project, Mainframe computer, Nohup, POSIX, Process (computing), Process group, Programmer, RS-232, Sendmail, Signal (IPC), Single UNIX Specification, Subroutine, Terminal emulator, Unix shell.

Apache HTTP Server

The Apache HTTP Server, colloquially called Apache, is a free and open-source cross-platform web server, released under the terms of Apache License 2.0.

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C preprocessor

The C preprocessor or cpp is the macro preprocessor for the C and C++ computer programming languages.

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C signal handling

In the C Standard Library, signal processing defines how a program handles various signals while it executes.

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Communication protocol

In telecommunication, a communication protocol is a system of rules that allow two or more entities of a communications system to transmit information via any kind of variation of a physical quantity.

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Computer program

A computer program is a collection of instructions for performing a specific task that is designed to solve a specific class of problems.

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Computer terminal

A computer terminal is an electronic or electromechanical hardware device that is used for entering data into, and displaying or printing data from, a computer or a computing system.

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Configuration file

In computing, configuration files (or config files) are files used to configure the parameters and initial settings for some computer programs.

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Daemon (computing)

In multitasking computer operating systems, a daemon is a computer program that runs as a background process, rather than being under the direct control of an interactive user.

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Data Carrier Detect

Data Carrier Detect, abbreviated as DCD, or alternately Carrier Detect abbreviated as CD, is a control signal present inside an RS-232 serial communications cable that goes between a computer and another device, such as a modem.

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Disown (Unix)

In the Unix shells ksh, bash and zsh, the disown builtin command is used to remove jobs from the job table, or to mark jobs so that a SIGHUP signal is not sent to them if the parent shell receives it (e.g. if the user logs out).

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Include directive

Many programming languages and other computer files have a directive, often called include (as well as copy and import), that causes the contents of a second file to be inserted into the original file.

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Inter-process communication

In computer science, inter-process communication or interprocess communication (IPC) refers specifically to the mechanisms an operating system provides to allow the processes to manage shared data.

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Interrupt

In system programming, an interrupt is a signal to the processor emitted by hardware or software indicating an event that needs immediate attention.

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Job control (Unix)

In Unix and Unix-like operating systems, job control refers to control of jobs by a shell, especially interactively, where a "job" is a shell's representation for a process group.

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Kill (command)

In computing, kill is a command that is used in several popular operating systems to send signals to running processes.

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KornShell

KornShell (ksh) is a Unix shell which was developed by David Korn at Bell Labs in the early 1980s and announced at USENIX on July 14, 1983.

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Linux distribution

A Linux distribution (often abbreviated as distro) is an operating system made from a software collection, which is based upon the Linux kernel and, often, a package management system.

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Linux Documentation Project

The Linux Documentation Project (LDP) is an all-volunteer project that maintains a large collection of GNU and Linux-related documentation and publishes the collection online.

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Mainframe computer

Mainframe computers (colloquially referred to as "big iron") are computers used primarily by large organizations for critical applications; bulk data processing, such as census, industry and consumer statistics, enterprise resource planning; and transaction processing.

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Nohup

nohup is a POSIX command to ignore the HUP (hangup) signal.

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POSIX

The Portable Operating System Interface (POSIX) is a family of standards specified by the IEEE Computer Society for maintaining compatibility between operating systems.

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Process (computing)

In computing, a process is an instance of a computer program that is being executed.

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Process group

In a POSIX-conformant operating system, a process group denotes a collection of one or more processes.

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Programmer

A programmer, developer, dev, coder, or software engineer is a person who creates computer software.

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RS-232

In telecommunications, RS-232, Recommended Standard 232 is a standard introduced in 1960 for serial communication transmission of data.

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Sendmail

Sendmail is a general purpose internetwork email routing facility that supports many kinds of mail-transfer and delivery methods, including the Simple Mail Transfer Protocol (SMTP) used for email transport over the Internet.

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Signal (IPC)

Signals are a limited form of inter-process communication (IPC), typically used in Unix, Unix-like, and other POSIX-compliant operating systems.

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Single UNIX Specification

The Single UNIX Specification (SUS) is the collective name of a family of standards for computer operating systems, compliance with which is required to qualify for using the "UNIX" trademark.

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Subroutine

In computer programming, a subroutine is a sequence of program instructions that performs a specific task, packaged as a unit.

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Terminal emulator

A terminal emulator, terminal application, or term, is a program that emulates a video terminal within some other display architecture.

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Unix shell

A Unix shell is a command-line interpreter or shell that provides a traditional Unix-like command line user interface.

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Redirects here:

Signal 1 (POSIX).

References

[1] https://en.wikipedia.org/wiki/SIGHUP

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