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oc -- Option Case
default range syntax
1,$ oc
The "c" (case) option toggles the same case mapping flag that
is toggled by the CTRL-Z control character, but also changes
the marginal line letters to lower case (or back to upper), so
that typing a shifted letter will still refer to a line, and
typing an unshifted letter will do for a command letter. This
is useful for handling large amounts of upper case text, such
as Fortran programs.
For general information about the option command, type "ho".
See also "hoa".
Fortraners see also "hof".