Re: View log files with emacs

[Eike <eike@eknet.org>]

Hi Tassilo,

Thanks for your reply.

Tassilo Horn writes:

> Hi Eike,
>
> many logging formats have a one-line-per-message format, and if there
> are multi-line messages, the second-to-last lines are indented, e.g.,
>
> [2015-02-18 08:22][foobar] An error occured: java.lang.NullPointerException
>   some.Class.method()
>   some.other.Class.method()
>   ...
>
> In that case you can use Selective Display for folding, see:
>
> ,----[ (info "(emacs)Selective Display") ]
> | Emacs has the ability to hide lines indented more than a given number of
> | columns.  You can use this to get an overview of a part of a program.
> `----

Oh, that is great! Thank you.


> And you can use `occur' for filtering to messages of a given type (as
> long as you can encode that in a regex):

I found occur yesterday after searching the emacswiki (which Drew
reminded me of). That also is really nice! Together with `syslog-mode',
selective display and `auto-revert-tail-mode' it seems I have all I need
now. Emacs seems to have everything… :)

Kind regards,
Eike

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