ed (text editor)

ed
Original authorKen Thompson
DeveloperAT&T Bell Laboratories
Initial release1973, 52–53 years ago
Written inC
Operating systemUnix, Unix-like, Plan 9
PlatformCross-platform
TypeText editor
LicensePlan 9: MIT License

ed (pronounced as distinct letters, /ˌiːˈdiː/) is a line editor. It was one of the first features of the Unix operating system. Although not commonly used today, it remains part of the POSIX and Open Group standards, alongside more sophisticated and commonly-used editors such as vi.

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