GNU bug report logs - #12115
Please add tip about using tac to reverse a file byte-by-byte

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Package: coreutils;

Reported by: Reuben Thomas <rrt <at> sc3d.org>

Date: Wed, 1 Aug 2012 21:46:01 UTC

Severity: normal

Done: Paul Eggert <eggert <at> cs.ucla.edu>

Bug is archived. No further changes may be made.

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Message #23 received at 12115 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Schwab <schwab <at> linux-m68k.org>
To: Jim Meyering <jim <at> meyering.net>
Cc: 12115 <at> debbugs.gnu.org, Reuben Thomas <rrt <at> sc3d.org>
Subject: Re: bug#12115: Please add tip about using tac to reverse a file
	byte-by-byte
Date: Thu, 02 Aug 2012 11:31:21 +0200

Jim Meyering <jim <at> meyering.net> writes:

> Andreas Schwab wrote:
>> Jim Meyering <jim <at> meyering.net> writes:
>>
>>> (note that below there's the added advantage of not having to
>>> double-quote to include $nl and hence not having to double-backslash)
>>
>> You can have that with the variable as well.
>
> You're right.  We could write it like this:
>
>     printf '\na\nb'|tac -rs '.\|'$nl

No, you need the quotes around $nl.

Andreas.

-- 
Andreas Schwab, schwab <at> linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."
This bug report was last modified 12 years and 114 days ago.

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