From: Ben Walton <bdwalton@gmail.com>
Date: Mon, 28 Oct 2013 21:10:46 GMT
Subject: Re: [PATCH] Change sed i\ usage to something Solaris' sed can handle
Message-ID: <CAP30j15+E4cz_kwJwaSH7-3agwC5J3jGNfaixSUg2=8xAzZoQg@mail.gmail.com>
In-Reply-To: <877gcx1eho.fsf@igel.home>

On Mon, Oct 28, 2013 at 5:39 PM, Andreas Schwab <schwab@linux-m68k.org> wrote:
> Ben Walton <bdwalton@gmail.com> writes:
>
>> diff --git a/t/t4015-diff-whitespace.sh b/t/t4015-diff-whitespace.sh
>> index 3fb4b97..0126154 100755
>> --- a/t/t4015-diff-whitespace.sh
>> +++ b/t/t4015-diff-whitespace.sh
>> @@ -145,7 +145,8 @@ test_expect_success 'another test, with --ignore-space-at-eol' 'test_cmp expect
>>  test_expect_success 'ignore-blank-lines: only new lines' '
>>       test_seq 5 >x &&
>>       git update-index x &&
>> -     test_seq 5 | sed "/3/i \\
>> +     test_seq 5 | sed "/3/i\\
>> +\
>>  " >x &&
>
> Why do you need the \<nl>?  Since it is inside double quotes the shell
> will remove it during expansion.

It's an escape. Without it, sed throws:

sed: -e expression #1, char 5: expected \ after `a', `c' or `i'

Thanks
-Ben
-- 
---------------------------------------------------------------------------------------------------------------------------
Take the risk of thinking for yourself.  Much more happiness,
truth, beauty and wisdom will come to you that way.

-Christopher Hitchens
---------------------------------------------------------------------------------------------------------------------------