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Re: Null character in replacement


From: Andreas Schwab
Subject: Re: Null character in replacement
Date: Fri, 24 Oct 2014 15:13:27 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux)

Zachary Vance <address@hidden> writes:

> sed -e "s/^$/\0/" (in bash, an s// expression containing a literal zero
> byte) performs no replacements on the stream.

A command line argument cannot contain a literal zero byte, since
argument strings are zero-terminated, and you would get an error about
an unterminated command.

$ sed -e $'s/^$/\0/'
sed: -e expression #1, char 5: unterminated `s' command

Andreas.

-- 
Andreas Schwab, address@hidden
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