Can someone tell me how do i retrieve the previous replacement command i type in vi.

For example:
while editing a file in vi, i type
:%s/star/stark/g

Now i realise that it should be starch instead of stark, so i did like to retrieve the old typed command just like retrieving the command from history in shell.

This thing is particularly helpful while writing lenghthy subsitution statments and for a single mistake you dont have to retype the whole command.

Any help would be welcome.

I don't think there's a way to do it.

I deal with it by using 3 monitors attached to one PC (then, I have more screen space to use) and open a notepad to use it as a job recorder.

For example:

In order to do the job you described above I type:
%s/star/starch/g
in the notepad and copy/paste it to vi

If I need to modify it, I modify it in the notepad and copy/paste it to vi:

...
%s/star/stach/g
%s/star/stark/g

After the job is done I save this notepad as an archive file for future reference.

Luke Chi