stupid question on vi

[Dave Tyson <dtyson%anduin.org.uk@localhost>]

Apologies for being thick, but I struggling with a really simple
problem. I have a file which has some hex characters 0x80 and higher.

I am trying to search for them so I can replace them. I can see them
and they appear, for example, like \x93 on the screen and occupy a
single character.

I have tried various incantations like

/^V\%x93

and loads of similar sequences which might work in vim, but not bog
standard vi in NetBSD.

I have used sed to do do replacements fine, but I just want to locate
some errant characters so I can see the context.

Having regularly used  :%s/^V^M// to clobber carriage returns I must be
missing something obvious :-)

Dave

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