grep for ascii nul
mail at ozzmosis.com
Fri Nov 1 09:22:18 UTC 2019
On Fri 2019-11-01 09:48:17 UTC+0700, Victor Sudakov (vas at sibptus.ru) wrote:
> 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.
I don't believe FreeBSD (or Linux, Windows or even DOS) allows filenames
containing a null. Any regular C program that treats filenames as a
null-terminated string would correctly stop iterating over the string at the
Consequently two files named "Hello" and another named "Hello\0world" would be
seen as identical, leading to unpredictable results.
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