undo.txt      For Vim version 5.6.  Last change: 1999 Dec 21


                  VIM REFERENCE MANUAL    by Bram Moolenaar


Undo and redo                                           undo-redo

1. Undo and redo commands       undo-commands
3. Remarks about undo           undo-remarks

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1. Undo and redo commands                               undo-commands

<Undo>          or                                      undo <Undo> u
u                       Undo [count] changes.  {Vi: only one level}

                                                        :u :un :undo
:u[ndo]                 Undo one change.  {Vi: only one level}

                                                        CTRL-R
CTRL-R                  Redo [count] changes which were undone.  {Vi: redraw
                        screen}

                                                        :red :redo redo
:red[o]                 Redo one change which was undone.  {Vi: no redo}

The last changes are remembered.  You can use the undo and redo commands above
to revert the text to how it was before each change.  You can also apply the
changes again, getting back the text before the undo.

==============================================================================
3. Remarks about undo                                   undo-remarks

The numbered registers can also be used for undoing deletes.  Each time you
delete text, it is put into register "1.  The contents of register "1 are
shifted to "2, etc.  The contents of register "9 are lost.  You can now get
back the most recent deleted text with the put command: '"1P'.  (also, if the
deleted text was the result of the last delete or copy operation, 'P' or 'p'
also works as this puts the contents of the unnamed register).  You can get
back the text of three deletes ago with '"3P'.

If you want to get back more than one part of deleted text, you can use a
special feature of the repeat command ".".  It will increase the number of the
register used.  So if you first do ""1P", the following "." will result in a
'"2P'.  Repeating this will result in all numbered registers being inserted.

Example:        If you deleted text with 'dd....' it can be restored with
                '"1P....'.

If you don't know in which register the deleted text is, you can use the
:display command.  An alternative is to try the first register with '"1P', and
if it is not what you want do 'u.'.  This will remove the contents of the
first put, and repeat the put command for the second register.  Repeat the
'u.' until you got what you want.

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