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For example, I have formed a long complicated command that will improve the world and lower an entropy in the Universe. But then (huh!) I see that I forgot to make a dir required. I want to store my command, run mkdir and then restore my command.

Assume doing it in a raw tty.

Is there a way to do so?

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  • I'm assuming you can't copy and paste? Just put a # at the beginning of the line and then run it. It'll be stored in the bash history where you can retrieve it, delete the # and the run it properly.
    – qasdfdsaq
    Jul 24, 2015 at 10:26

2 Answers 2

Reset to default
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On your command-line press Ctrl-u (it stores it in the kill-ring), issue the other one mkdir for example, and then press Ctrl-y.

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Use set -o vi command or set -o emacs (typically one would store this in .bashrc for convenience). This enables a vi-style (or emacs type) line editing interface.

This provides you with a command line vi editor. You can search for previous commands, edit commands, etc.

Examples:

Use ESC key to enter vi command mode, then

$ /search-string

Use UP and DOWN keys, (or j and k) to list found commands 

$ long-command-you-want-to-edit

Hit ESC key type vi Then edit the long command in a vi editor.

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