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sed, being a stream editor, is more efficient than ed, in that it does not need to keep the entire file in memory.
by Koshkin 5y ago
sed, being a stream editor, is more efficient than ed, in that it does not need to keep the entire file in memory.
- u801e 5y agoTrue, but if the file isn't that big, then the difference isn't noticable. Being able to do something like /some string/-2 d Which deletes a line 2 lines above where some string matched is something that's trivial to do in ed, but takes a bit of work in sed.