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    SubjectRe: [PATCH 3/3] perf, tool: Add new event group management

    * Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:

    > # echo {}
    > {}
    > # echo {en,dis}able
    > enable disable
    >
    >
    > It somehow special cases {}, which is horrible.

    Oh, indeed: brace expansion and sequence expressions both use
    curly braces:

    $ echo foo-{a,b,c}-bar
    foo-a-bar foo-b-bar foo-c-bar

    $ echo {1..10}
    1 2 3 4 5 6 7 8 9 10

    Too bad, it would be rather intuitive. All the brace characters
    are taken by Bash.

    Maybe something like:

    $ echo /minor-faults,major-faults/
    /minor-faults,major-faults/

    although it looks a bit weird.

    So ... how about using another grouping operator, such as '+'?

    Something like:

    -e minor-faults+major-faults

    While when comma separated they are not grouped, or so.

    ?

    Thanks,

    Ingo


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