Editing in Insert Mode

The Minibuffer can be edited in the same way as Insert mode.

C-v

Deprive the next char of its special meaning (quoting).

C-d

One shiftwidth to the left.

0C-d

Remove all indentation on the current line (there must be no other chars on the line).

^C-d

Idem, but it is restored on the next line.

C-t

one shiftwidth to the right

C-h

One char back.

C-w

One word back.

C-u

Back to the begin of the change on the current line.

C-c

like <esc>.