Edit - please see the same question on Unix Stack Exchange.
What is the equivalent of Windows' CTRL-Right and CTRL-Left ?
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Alt-f moves forward, Alt-b moves backwards. But that's not all! Ctrl+a moves to beginning of line, Ctrl+e moves to end of line, Ctrl+r performs an interactive history search, which is very useful. For many more keybindings, comb your way through
Add these two lines to your
and press Ctrl-x Ctrl-r to reread the file to make the changes active in your current session.
You will be able to use Ctrl-Right and Ctrl-Left to move right or left word by word.