Debugging with GDB

Node:Modifiers, Previous:Word Designators, Up:History Interaction

#### Modifiers

After the optional word designator, you can add a sequence of one or more of the following modifiers, each preceded by a `:`.

`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 delimiter may be used 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 `&`. The final delimiter is optional if it is the last character on the input line.
`&`
  Repeat the previous substitution.
`g`
  Cause changes to be applied over the entire event line. Used in conjunction with `s`, as in `gs/`old`/`new`/`, or with `&`.