Editing HP-UX (section)

{{Short description|Operating system}}
{{Infobox OS
| name = HP-UX
| logo = [[File:HP-UX logo newer.svg|frameless|0.75]]
| screenshot = HPUX screenshot.png
| caption = Screenshot and [[Common Desktop Environment|CDE]] graphical interface of HP-UX version 11iv3
| developer = [[Hewlett Packard Enterprise]]
| family = [[Unix]] ([[UNIX System V|System V]])
| released = {{Start date and age|1982}}
| source_model = [[Closed source]]
| working_state = Current
| latest_release_version = 2405.11iv3<ref>{{cite web|url=https://support.hpe.com/connect/s/softwaredetails?collectionId=MTX-MSC_HPUX_VSEOE|title=HP-UX 11i v3 VSE-OE Media|website=support.hpe.com|access-date=2024-04-18}}</ref>
| latest_release_date = {{Release date and age|2024|05|31}}
| marketing_target = [[Server (computing)|Server]]
| programmed_in = [[C (programming language)|C]]
| prog_language = [[C (programming language)|C]]
| language = English
| package_manager = [[Software Distributor]]
| supported_platforms = Current: [[IA-64]]<br>Former: [[Motorola 68k]], [[HP FOCUS|FOCUS]], [[PA-RISC]]
| kernel_type = [[Monolithic kernel|Monolithic]] with [[loadable kernel module|dynamically loadable modules]]
| userland = [[POSIX]] / [[Single UNIX Specification|SUS]]
| ui = [[KDE Plasma 5|KDE]], [[GNOME]] and [[Common Desktop Environment|CDE]]
| license = [[Proprietary software|Proprietary]]
| website = {{URL|www.hpe.com/info/hpux}}
}}
[[File:HP Superdome Itanium.jpg|thumb|[[HP Superdome]] running HP-UX 11.23 OS]]
[[File:HP-HP9000-425-Workstation 20.jpg|thumb|[[HP 9000]]/425 [[workstation]] running HP-UX 9 with [[HP-VUE]] ]]
[[File:HP-HP9000-B180-Workstation 37.jpg|thumb|The HP 9000-B180L [[workstation]] running HP-UX 10.20 with [[Common Desktop Environment|CDE]] ]]
[[File:HP-HP9000-C8000-Workstation 33.jpg|thumb|[[Hewlett-Packard|HP]] C8000 [[workstation]] running HP-UX 11i]]

'''HP-UX''' (from "Hewlett Packard Unix") is a [[proprietary software|proprietary]] implementation of the [[Unix]] [[operating system]] developed by [[Hewlett Packard Enterprise]]; current versions support [[HPE Integrity Servers]], based on [[Intel]]'s [[Itanium]] architecture. It is based on [[Unix System V]] (initially [[Unix System III|System III]]) and first released in 1984.

Earlier versions of HP-UX supported the [[HP Integral PC]] and [[HP 9000]] Series 200, 300, and 400 computer systems based on the [[Motorola 68000]] series of processors, the HP 9000 Series 500 computers based on HP's proprietary [[HP FOCUS|FOCUS]] architecture, and later HP 9000 Series models based on HP's [[PA-RISC]] [[instruction set architecture]]. HP-UX was the first Unix to offer [[access-control list]]s for file access permissions as an alternative to the standard Unix permissions system.{{citation needed|date=September 2015}} HP-UX was also among the first Unix systems to include a built-in [[logical volume management|logical volume manager]].{{citation needed|date=September 2015}} 

HP has had a long partnership with [[Veritas Software]], and uses [[Veritas File System|VxFS]] as the primary [[file system]]. It is one of three commercial operating systems that have versions certified to [[The Open Group]]'s [[Single UNIX Specification|UNIX 03 standard]] (the others are [[macOS]] and [[IBM AIX|AIX]]).<ref>{{cite web|url=https://www.opengroup.org/openbrand/register/xy.htm|title=UNIX 03 - The Open Brand Register|access-date=2023-03-22|publisher=[[The Open Group]]}}</ref> Following the discontinuation of Itanium processors, HP-UX is set to reach [[End-of-life product|end-of-life]] by December 2025.<ref>{{Cite web |last=Sanders |first=James |date=2019-02-01 |title=Save the date: Itanium will finally die at the end of 2025 |url=https://www.techrepublic.com/article/save-the-date-itanium-will-finally-die-at-the-end-of-2025/ |access-date=2024-11-21 |website=TechRepublic |language=en-US}}</ref>