sed(1) on OpenBSD
The text c5601998760d, as OpenBSD 2.3, OpenBSD 2.2 shipped it.
stream editor
Flags it lists
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-a -
-e -
-f -
-n
The text c5601998760d, as OpenBSD 2.3, OpenBSD 2.2 shipped it.
stream editor
-a
-e
-f
-n