Re: [OT] Bash help

[Gordon Messmer <gordon.messmer@xxxxxxxxx>]

On Wed, Oct 25, 2017 at 9:47 AM, Warren Young <warren@xxxxxxxxxxx> wrote:
>
> This screams out for associative arrays.  (Also called hashes, dictionaries, maps, etc.)
>
> That does limit you to CentOS 7+, or maybe 6+, as I recall.  CentOS 5 is definitely out, as that ships Bash 3, which lacks this feature.


Nonsense.  Every POSIX shell has an associative array called "the filesystem."

(hash=$(mktemp -d); while read addr msgs; do echo $msgs >>
"$hash/$addr"; done; cd "$hash"; for x in *; do echo "$x $(paste -s
-d+ < $x | bc)"; done;) < msg-counts
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