32.1.2 Word Designators
Word designators are used to select desired words from the event. A : separates the event specification from the word designator. It may be omitted if the word designator begins with a ^, $, *, -, or %. Words are numbered from the beginning of the line, with the first word being denoted by 0 (zero). Words are inserted into the current line separated by single spaces.
- designates the preceding command. When you type this, the preceding
command is repeated in toto.
- designates the last argument of the preceding command. This may be
- designates the second argument of the most recent command starting with
Here are the word designators:
0th word. For many applications, this is the command word.
- The nth word.
- The first argument; that is, word 1.
- The last argument.
- The word matched by the most recent ?string? search.
- A range of words; -y abbreviates 0-y.
- All of the words, except the
0th. This is a synonym for 1-$. It is not an error to use * if there is just one word in the event; the empty string is returned in that case.
- Abbreviates x-$
- Abbreviates 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.