# ISO/IEC 9945-1:2003 — Withdrawn and superseded ISO standards

For ISO/IEC 9945-1:2003, item title is Information technology — Portable Operating System Interface (POSIX) — Part 1: Base Definitions; status code is 9599; successor is ISO/IEC/IEEE 9945:2009; withdrawn / published date is 2003-08-18, recorded from its source on 2026-08-05.

- **Identifier:** ISO/IEC 9945-1:2003 _(verified: appears in the quote below)_
- **Item title:** Information technology — Portable Operating System Interface (POSIX) — Part 1: Base Definitions _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/IEC/IEEE 9945:2009
- **Withdrawn / published date:** 2003-08-18 _(verified: appears in the quote below)_

## What the source says

> 38789,IS,,ISO/IEC 9945-1:2003,Information technology — Portable Operating System Interface (POSIX) — Part 1: Base Definitions,Technologies de l'information — Interface pour la portabilité des systèmes (POSIX) — Partie 1: Définitions de base,2003-08-18,4,['35.060'],ISO/IEC JTC 1/SC 22,9599,[37312],[50516],['en'],452,"<p>ISO/IEC 9945 (parts 1 to 4):2003 defines a standard operating system interface and environment, including a command interpreter (or 'shell'), and common utility programs to support applications portability at the source code level.</p><p>ISO/IEC 9945-1:2003 is a minor revision and, together with ISO/IEC 9945-2:2003, ISO/IEC 9945-3:2003 and ISO/IEC 9945-4:2003, cancels and repl

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).