I happen to find myself regularly in the situation of writing a throw away BASH script. Often, I need to run the script several times before I have it implemented correctly. This is the typical edit-(compile-)run cycle most programmers know. The trial-and-error workflow must be of course as fast as possible. I am already using tmux so switching between the editor and the console where the script runs is pretty fast. Still, I need to switch to that window, recall the previous command and execute it again. The appropriate tmux/shell key sequence would be
<tmux-prefix>4<CAPSLOCK>k<ENTER>. Let’s examine this in detail
<tmux-prefix>4 Jump to the window (in this case window #4) where the script is run. <CAPSLOCK> Enter Normal mode in Zsh. I am using vi-mode in the shell and have mapped CAPSLOCK to ESC k Scroll up to the previous command. This is the previously executed script, of course. <ENTER> Execute the command.
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