|
From: | Linda Walsh |
Subject: | Re: redirecting a file descriptor to an array variable? Possible? How? RFE? |
Date: | Wed, 18 Nov 2015 12:29:15 -0800 |
User-agent: | Thunderbird |
Greg Wooledge wrote:
On Wed, Nov 18, 2015 at 10:46:57AM -0800, Linda Walsh wrote:One thing that seems to be another problem. Greg called my attention to another printf format bug:%q causes printf to output the corresponding argument in aformat that can be reused as shell input. Which it doesn't when nuls are involved.An argument cannot contain a NUL byte. So it's moot.
--- As in:
printf '"%c"\n' $'\x00'|hexdump -C
00000000 22 00 22 0a |".".|I see 2 arguments being passed to printf. That puts the NUL byte between 2 double quotes and terminates the line w/a newline.
What I'm pointing out is that a NUL byte can be used and processed as an argument in some cases. The fact that it doesn't work in most places, I will agree, is a short-coming. However one cannot categorically say that a NUL byte can't be used as an argument. Solving other places where it doesn't work might make it so that it *would* work... Maybe a "-b" (binary) option could be added to 'declare'?
[Prev in Thread] | Current Thread | [Next in Thread] |