sed: sed (stream editor)
sed:
sed: This is super-sed, a stream editor.  A stream editor is used to
sed: perform basic text transformations on an input stream (a file or
sed: input from a pipeline).  sed is a required package (it is needed
sed: by many system scripts).  It is sed's ability to filter text in
sed: a pipeline which distinguishes it from other types of editors.
sed:
sed: GNU sed, on which super-sed is based, was first authored by Jay
sed: Fenlason (and later modified by Tom Lord) , and is now maintained
sed: by Ken Pizzini and Paolo Bonzini.