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Init

In Unix-like computer operating systems, init (short for initialization) is the first user-space process started during booting of the operating system. Init is a daemon process that continues running until the system is shut down. It is the direct or indirect ancestor of all other processes and automatically adopts all orphaned processes. Init is…

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SysV-style

RunlevelsDaemonsX Window SystemTurn offSingle-user mode
13 related topics

Overview

Unix-likeOperating systemsUser-spaceProcessBooting
23 related topics

Research Unix-style/BSD-style

Shell scriptGetty4.3BSDWindowing systemNetBSD
7 related topics

Other implementations

Input/output
1 related topics

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Overview

Research Unix-style/BSD-style

SysV-style

Other implementations

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Map overview Semantic statistics

Init

Nodes49
Edges48
Triples48
Avg. degree1.96
Density0.040816
Components1

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Init

Top relations

related to Default runlevels · 9
Init → GDM, However, KDM, On, On Linux, Solaris, The, The/etc/inittabfile, Window System
related to SysV-style · 8
Init → AT, Switching, System, SysV-style, T's UNIX System III, UNIX System, When, Window System
related to External links · 7
Init → Archived, December, FreeBSD, Quickstart Guide, Solaris Service Management Facility, Unix, Wayback Machine
related to Other implementations · 7
Init → I/O, Input/output, Speeding, SSDs, Traditionally, Various, When
related to Research Unix-style/BSD-style · 7
Init → BSD, However, Research Unix, Research UNIX's, The, There, To
is a · 1
Init → daemon process that continues running until the system is shut down

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Important terminology

system systems runlevel process runlevels etc typically running unix distributions operating start research unix-like scripts started linux modern bsd also

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Initis adaemon process that continues running until the system is shut down0.90text
System IIIinstance ofInit is typically assigned process identifier 1.In Unix systems0.80text
System Vinstance ofInit is typically assigned process identifier 1.In Unix systems0.80text
the design of init diverged from the functionality provided by the init in Research Unixinstance ofInit is typically assigned process identifier 1.In Unix systems0.80text
its BSD derivativesinstance ofInit is typically assigned process identifier 1.In Unix systems0.80text
Slackware use BSD-style startup scriptsinstance ofwhile some distributions0.80text
and other distributions such as Gentoo have their own customized versions.Since theninstance ofwhile some distributions0.80text
most Linux distributions have employed a more modern init systeminstance ofwhile some distributions0.80text
with most employing the init provided by the systemd projectinstance ofwhile some distributions0.80text
X on graphical terminals under the control of/etc/ttysinstance ofit added support for running a windowing system0.80text
Initrelated to Default runlevelsOn Linux0.60section
Initrelated to Default runlevelsWindow System0.60section

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