Sed

sed
	An excerpt from GNU sed's man page
Paradigm	scripting
Designed by	Lee E. McMahon
First appeared	1974
Implementation language	C
Influenced by
	ed
Influenced
	Perl, AWK

sed ("stream editor") is a Unix utility that parses and transforms text, using a simple, compact programming language. It was developed from 1973 to 1974 by Lee E. McMahon of Bell Labs,^[1] and is available today for most operating systems.^[2] sed was based on the scripting features of the interactive editor ed ("editor", 1971) and the earlier qed ("quick editor", 1965–66). It was one of the earliest tools to support regular expressions, and remains in use for text processing, most notably with the substitution command. Popular alternative tools for plaintext string manipulation and "stream editing" include AWK and Perl.

^ "The sed FAQ, Section 2.1". Archived from the original on 2018-06-27. Retrieved 2013-05-21.
^ "The sed FAQ, Section 2.2". Archived from the original on 2018-06-27. Retrieved 2013-05-21.

[sed-faq-2.1-1] "The sed FAQ, Section 2.1". Archived from the original on 2018-06-27. Retrieved 2013-05-21.

[sed-faq-2.2-2] "The sed FAQ, Section 2.2". Archived from the original on 2018-06-27. Retrieved 2013-05-21.

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