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bug#24929: comm enhancement proposal: --print-summary --quiet
From: |
Bernhard Voelker |
Subject: |
bug#24929: comm enhancement proposal: --print-summary --quiet |
Date: |
Tue, 22 Nov 2016 14:14:09 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 |
On 11/18/2016 10:43 PM, 積丹尼 Dan Jacobson wrote:
> The example is confusing, as it just happens to result in 1 2 3,
>
> $ printf '%s\n' 1 2 3 4 > file1
> $ printf '%s\n' 2 3 4 5 6 > file2
> $ comm --total -123 file1 file2
> 1 2 3 total
>
> So please use
>
> $ printf '%s\n' 0 2 3 5 6 > file1
> $ printf '%s\n' 1 2 4 6 7 8 9 > file2
> $ comm --total -123 file1 file2
> 3 5 2 total
I see the point. I changed the example data to 'a b c ...' which I think
is even easier to read and understand.
> Also add a note "However --total is a GNU extension. For a portable way
> to make totals, use wc:
>
> $ echo Lines only in 1st = $(comm -23 file1 file2 | wc -l)
> $ echo Lines only in 2nd = $(comm -13 file1 file2 | wc -l)
> $ echo Lines in both = $(comm -12 file1 file2 | wc -l)
I'll squash in the attached, and push soon.
Thanks & have a nice day,
Berny
comm-total-doc-amendmend.diff
Description: Text Data
bug#24929: comm enhancement proposal: --print-summary --quiet, 積丹尼 Dan Jacobson, 2016/11/18
- bug#24929: comm enhancement proposal: --print-summary --quiet,
Bernhard Voelker <=