Shortcuts to cut, copy & paste on a terminal command line

Ctrl + u : Deletes from the cursor back to the line start.
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Ctrl + k : Deletes from the cursor to the end of the line.

Ctrl + w : Deletes until after the previous word boundary.

Alt + d : Deletes until before the next word boundary.

Ctrl + y : Yank/Past the previous killed text at he cursor position.

Alt + y : Yank/Past the previous previous killed text at he cursor position.

More details:
https://en.wikipedia.org/wiki/GNU_Readline