Word designators are used to select desired words from the event.
:’ separates the event specification from the word designator. It
may be omitted if the word designator begins with a ‘
-’, or ‘
%’. Words are numbered from the beginning
of the line, with the first word being denoted by 0 (zero). Words are
inserted into the current line separated by single spaces.
Here are the word designators:
0th word. For many applications, this is the command word.
-y’ abbreviates ‘
0th. This is a synonym for ‘
1-$’. It is not an error to use ‘
*’ if there is just one word in the event; the empty string is returned in that case.
x-$’ like ‘
x*’, but omits the last word.
If a word designator is supplied without an event specification, the previous command is used as the event.