Hi Norm,
Here's where each has to end up.
$ paste <(echo "$l") <(echo "$l" | sort -n) | awk '$1 != $2'
25 2
4 3
3 4
31 9
29 10
41 13
9 20
13 23
2 25
23 29
20 31
10 41
$
There are two questions. One is what should be done. You have answered
that well. The second question is how should it be done. My answer
would be, the way sortm does it.
Great minds... :-) Though I was wondering if something like this would
do. Continuing with the above mapping, let's get some emails.
$ for f in {1..42}; do
> printf '%s\n' "Subject: Originally $f" \
> 'Date: Tue, 17 Jun 2014 21:25:31 +0100' >$f
> done
$
$ scan -forma '%4(msg) %{subject}' last:3
40 Originally 40
41 Originally 41
42 Originally 42
$
Now annotate those to permute with where they will end up.
$ paste <(echo "$l") <(echo "$l" | sort -n) |
> while read src dest; do
> anno -preserve -nodate -component norm-order -text `printf %09d
$dest` $src
> done
$
$ scan -forma '%4(msg) %15{subject} %{norm-order}' 1-5
1 Originally 1
2 Originally 2 000000025
3 Originally 3 000000004
4 Originally 4 000000003
5 Originally 5
$
Then sortm the emails on that field, as they're all distinct the date
will be ignored.
$ sortm -textfield norm-order -limit 0 $l
$ scan -forma '%4(msg) %15{subject} %{norm-order}'
1 Originally 1
2 Originally 25 000000002
3 Originally 4 000000003
4 Originally 3 000000004
5 Originally 5
6 Originally 6
7 Originally 7
8 Originally 8
9 Originally 31 000000009
10 Originally 29 000000010
11 Originally 11
12 Originally 12
13 Originally 41 000000013
14 Originally 14
15 Originally 15
16 Originally 16
17 Originally 17
18 Originally 18
19 Originally 19
20 Originally 9 000000020
21 Originally 21
22 Originally 22
23 Originally 13 000000023
24 Originally 24
25 Originally 2 000000025
26 Originally 26 000000026
27 Originally 27
28 Originally 28
29 Originally 23 000000029
30 Originally 30
31 Originally 20 000000031
32 Originally 32
33 Originally 33
34 Originally 34
35 Originally 35
36 Originally 36
37 Originally 37
38 Originally 38
39 Originally 39
40 Originally 40
41 Originally 10 000000041
42 Originally 42
$
And remove the temporary header.
$ anno -preserve -nodate -component norm-order -delete $l
$
Cheers, Ralph.
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