Do not use redirection characters in your shell prompt

This was never an issue when shells were first invented, because there were no mice. You could not select a region of the screen with the mouse, so there were no cut-and-paste errors like these.

If I want repeat an earlier command, I use the up-arrow, or bang:

!a repeats the last command that began with an "a".

The computer mouse, in its current form, was invented half a decade before Unix itself was. This should be qualified with: there were no mice on the machines that ran Unix.