33.1.3 Modifiers
After the optional word designator, you can add a sequence of one or more
of the following modifiers, each preceded by a `:'.
These modify, or edit, the word or words selected from the history event.
h
- Remove a trailing pathname component, leaving only the head.
t
- Remove all leading pathname components, leaving the tail.
r
- Remove a trailing suffix of the form `.suffix', leaving
the basename.
e
- Remove all but the trailing suffix.
p
- Print the new command but do not execute it.
s/
old/
new/
- Substitute new for the first occurrence of old in the
event line.
Any character may be used as the delimiter in place of `/'.
The delimiter may be quoted in old and new
with a single backslash. If `&' appears in new,
it is replaced by old. A single backslash will quote
the `&'.
If old is null, it is set to the last old
substituted, or, if no previous history substitutions took place,
the last string
in a !?string
[?]
search.
If new is is null, each matching old is deleted.
The final delimiter is optional if it is the last
character on the input line.
&
- Repeat the previous substitution.
g
a
- Cause changes to be applied over the entire event line. Used in
conjunction with `s', as in
gs/
old/
new/
,
or with `&'.
G
- Apply the following `s' or `&' modifier once to each word
in the event.