Another use of recset is to rename existing fields. This is achieved using the
-r flag.
To rename all instances of the Expiry
field occurring in any
record of type Item
to UseBy
,
the following command suffices:
$ recset -t Item -f Expiry -r 'UseBy' stock.rec
As with most operations, this could be done selectively, using the -e flag and a selection expression.