Date: Fri, 1 Nov 2019 15:24:26 +1100 From: MJ <mafsys1234@gmail.com> To: thor <thor@irk.ru>, freebsd-questions@freebsd.org Subject: Re: grep for ascii nul Message-ID: <8af5cac6-827e-9420-fe14-204bd4490976@gmail.com> In-Reply-To: <2c08387c-425b-060d-4f9b-3443a3f6a18f@irk.ru> References: <20191101024817.GA60134@admin.sibptus.ru> <2c08387c-425b-060d-4f9b-3443a3f6a18f@irk.ru>
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On 1/11/2019 2:07 pm, thor wrote: > There is NO such thing as filenames containing 0x00 inside the filename. UNIX filenames are strings in C meaning and may contain any 8-bit values except "/" which delimits the subdirectory names and 0x00 which marks the end of filename string. > > At least it was so when I first met Unix, and I hope Bill Gates never influenced Unix since this time. Nope you're right, no \0 allowed in filenames. None, nada, zilch. > On 11/01/19 10:48, Victor Sudakov 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. >> Victor, If you do find a file with it in, I suggest you bottle it and place it alongside your unicorn. MarkJ
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