Vi text Editor

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VI Text editor
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    Arrow keys - move the cursor around
    j, k, h, l - move the cursor down, up, left and right (similar to the arrow keys)
    ^ (caret) - move cursor to beginning of current line
    $ - move cursor to end of the current line
    nG - move to the nth line (eg 5G moves to 5th line)
    G - move to the last line
    w - move to the beginning of the next word
    nw - move forward n word (eg 2w moves two words forwards)
    b - move to the beginning of the previous word
    nb - move back n word
    { - move backward one paragraph
    } - move forward one paragraph


 :set nu - enable line numbers


    x - delete a single character
    nx - delete n characters (eg 5x deletes five characters)
    dd - delete the current line
    dn - d followed by a movement command. Delete to where the movement command would have taken you. (eg d5w means delete 5 words)



    u - Undo the last action (you may keep pressing u to keep undoing)
    U (Note: capital) - Undo all changes to the current line