grep for ascii nul

[Victor Sudakov]

Dear Colleagues,

How can I print the names of files containing ascii nul (\x0)? The
FreeBSD "grep -l" does not seem to be able to do it.

NB I don't need to delete the nul character with sed or tr, just need to
find files containing it.

-- 
Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
2:5005/49 at fidonet http://vas.tomsk.ru/
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