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Simple Macro - repeat your steps x times

within vi create a macro called "a": qa

then do all the steps you want in the macro by editing the file as you normaly would

close the macro: q

run the macro 10 times: 


Replace spaces with  

:s/ /\1\r/

Sort a file within vi 


Sort and remove duplicates

:sort u

Remove windows newline

:%s/[[ctrlkey+v and ctrl-key+M]]//g

Replace multiple spaces with tabs

:%s/   /\t/g