RTEMS GNU Tools On-Line Library

Event Designators

Debugging with GDB

An event designator is a reference to a command line entry in the history list.

!: Start a history substitution, except when followed by a space, tab, the end of the line, `=' or `('.
!n: Refer to command line n.
!-n: Refer to the command n lines back.
!!: Refer to the previous command. This is a synonym for `!-1'.
!string: Refer to the most recent command starting with string.
!?string[?]: Refer to the most recent command containing string. The trailing `?' may be omitted if the string is followed immediately by a newline.
^string1^string2^: Quick Substitution. Repeat the last command, replacing string1 with string2. Equivalent to !!:s/string1/string2/.
!#: The entire command line typed so far.

Debugging with GDB