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what is ed?

little bottle
little bottleOriginal
2019-05-21 14:33:1212920browse

There are many words on the Internet today because they are abbreviations, and the result of vocabulary abbreviations is various duplicate names, which makes it difficult to know what it refers to if you don't know much about it. For example, the ED I am going to introduce to you is actually a line editor. .

what is ed?

#ED is a line editor for Unix and Unix-like operating systems. It was one of the first parts of the Unix operating system developed in August 1969.

It is still part of the POSIX and Open Group standards for Unix-based operating systems, as well as more complex full-screen editing vi.

ed features include:

1. Basically available on all Unix systems (and mandatory on systems that comply with the single Unix specification).

2. Modal editor that supports command mode, text mode and view mode.

3. Support regular expressions.

4. Powerful automation can be achieved by feeding commands from standard input.

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