9.3.1 Event Designators
An event designator is a reference to a command line entry in the
Start a history substitution, except when followed by a space, tab,
the end of the line, '=' or '('.
Refer to command line n.
Refer to the command n lines back.
Refer to the previous command. This is a synonym for '!-1'.
Refer to the most recent command starting with string.
Refer to the most recent command containing string. The trailing
'?' may be omitted if the string is followed immediately by
Quick Substitution. Repeat the last command, replacing string1
with string2. Equivalent to
The entire command line typed so far.