Readline commands
As someone who spends much of their life at a bash prompt, I should really use GNU readline commands more often. The only one I ever use is Ctrl-R, to search backwards through the history. The full list of bindable readline commands is here.
A few that look particularly useful:
beginning-of-history (Alt-<) Move to the first line in the history. end-of-history (Alt->) Move to the end of the input history, i.e., the line currently being entered. unix-line-discard (Ctrl-u) Kill backward from the cursor to the beginning of the current line. kill-line (Ctrl-k) Kill the text from point to the end of the line. forward-word (Alt-f) Move forward to the end of the next word. Words are composed of letters and digits. backward-word (Atl-b) Move back to the start of the current or previous word. Words are composed of letters and digits.
