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WHAT IS SED? A non-interactive stream editor Interprets sed instructions and performs actions Use sed to: Automatically perform edits on file(s) Simplify. - ppt download
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Lecture 5 Awk and Shell. Sed Drawbacks Hard to remember text from one line to another Not possible to go backward in the file No way to do forward references. - ppt download
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regular expression - sed one-liner to delete any line that begins with a digit - Unix & Linux Stack Exchange
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