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Assume that the history list contains the command e='echo a b c' and then $e.

How to refer to the command $e using the history expansion feature of bash?

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  • @AdminBee !$ refers the last word of the last command. If $e is not the last command, !$ does not work.
    – tmpbin
    Jul 10, 2020 at 12:34
  • You are right; showcase of a bad testing example :(
    – AdminBee
    Jul 10, 2020 at 12:35
  • This works for your example: !?$, but it searches $anywhere in the command, not only in the beginning. So if there is some other command with $ e.g. echo "$e" coming after $e ..., you get that.
    – pLumo
    Jul 10, 2020 at 13:20

1 Answer 1

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Here is an alternative you can set an alias for:

eval `history |awk '/^  [0-9]*  [$]/{print $2}'|tail -n 1`

It searches the history for the last command starting with $ and evaluates the result. Although, it will not work with multiline commands.

I would suggest using Ctrl+R, typing $, and cycling through previous commands matching $.

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