Hi,
do you know any colored less version? I often browse logs (not Linux
system logs). I use less for that and it works fine. However it is
single colored. I know that less has ANSI sequences support, but for
that I would have to change program output (which is not possible).
The only solution which I see is run sed producing ANSI sequences as
LESSPIPE. Do you know any other solution?
In other words: I have text file. It can be big (few GB). I want to
browse it. I would like to color every line, for example containing
ERROR as RED, containing WARNING as YELLOW, containing [RG].*debug
as GRAY ... I would like to define coloring rules. The viewer can be
text-based (like less) or for any XWindow system.

I would appreciate any comments on that.

Regards,
Robert


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On Mon, Nov 24, 2008 at 1:14 PM, Rob Gom <rgom.debian@gmail.com> wrote:
> Hi,
> do you know any colored less version? I often browse logs (not Linux
> system logs). I use less for that and it works fine. However it is
> single colored. I know that less has ANSI sequences support, but for
> that I would have to change program output (which is not possible).
> The only solution which I see is run sed producing ANSI sequences as
> LESSPIPE. Do you know any other solution?
> In other words: I have text file. It can be big (few GB). I want to
> browse it. I would like to color every line, for example containing
> ERROR as RED, containing WARNING as YELLOW, containing [RG].*debug
> as GRAY ... I would like to define coloring rules. The viewer can be
> text-based (like less) or for any XWindow system.
>
> I would appreciate any comments on that.

Switch to using view (basically a read-only vim)

/M

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Rob Gom wrote:

Hi,
do you know any colored less version? I often browse logs (not Linux
system logs). I use less for that and it works fine. However it is
single colored. I know that less has ANSI sequences support, but for
that I would have to change program output (which is not possible).
The only solution which I see is run sed producing ANSI sequences as
LESSPIPE. Do you know any other solution?


Did you try `ccze'? It is in the repos.


In other words: I have text file. It can be big (few GB). I want to
browse it. I would like to color every line, for example containing
ERROR as RED, containing WARNING as YELLOW, containing [RG].*debug
as GRAY ... I would like to define coloring rules. The viewer can be
text-based (like less) or for any XWindow system.

I would appreciate any comments on that.

Regards,
Robert





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If you can't explain it simply, you don't understand it well enough.
-- Albert Einstein


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>
> Switch to using view (basically a read-only vim)
>
> /M
>
Thanks for the suggestion. Invoking vim would trigger reading whole
file to memory. I expected the same for view, but for 1,5GB it started
very fast.
However I don't see two things:
1. Automatic file update (when it's changed).
2. Easy way to colorify lines based on regexp.

Regards,
Robert


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On Mon, Nov 24, 2008 at 2:51 PM, Raj Kiran Grandhi <grajkiran@gmail.com> wrote:
> Rob Gom wrote:
>>
>> Hi,
>> do you know any colored less version? I often browse logs (not Linux
>> system logs). I use less for that and it works fine. However it is
>> single colored. I know that less has ANSI sequences support, but for
>> that I would have to change program output (which is not possible).
>> The only solution which I see is run sed producing ANSI sequences as
>> LESSPIPE. Do you know any other solution?
>
> Did you try `ccze'? It is in the repos.
>
[cut]
How can I use that? As LESSPIPE?
Is it easily configurable?

Regards,
Robert


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Le Lun 24 novembre 2008 15:00, Rob Gom a écrit :
> However I don't see two things:
> 1. Automatic file update (when it's changed).
> 2. Easy way to colorify lines based on regexp.

You might try "swatch"

Fanfan
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On Mon, Nov 24, 2008 at 2:00 PM, Rob Gom <rgom.debian@gmail.com> wrote:
>>
>> Switch to using view (basically a read-only vim)
>>
>> /M
>>
> Thanks for the suggestion. Invoking vim would trigger reading whole
> file to memory. I expected the same for view, but for 1,5GB it started
> very fast.
> However I don't see two things:
> 1. Automatic file update (when it's changed).

I'm not sure exactly how it can be done automatically. I didn't even
know less could. Anyway, the command in vim to reread the open file
is ':e!'.

> 2. Easy way to colorify lines based on regexp.

You'll probably have to read up on how to add colour to vim. I'm sure
your favourite search engine can help you out:
http://letmegooglethatforyou.com/?q=vim+coloring :-)

/M

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On Mon, 24 Nov 2008 15:00:17 +0100
"Rob Gom" <rgom.debian@gmail.com> wrote:

> >
> > Switch to using view (basically a read-only vim)
> >
> > /M
> >
> Thanks for the suggestion. Invoking vim would trigger reading whole
> file to memory. I expected the same for view, but for 1,5GB it started
> very fast.
> However I don't see two things:
> 1. Automatic file update (when it's changed).

less doesn't seem to do this either.

> Robert

Celejar
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On Mon, Nov 24, 2008 at 7:42 PM, Celejar <celejar@gmail.com> wrote:
> On Mon, 24 Nov 2008 15:00:17 +0100
> "Rob Gom" <rgom.debian@gmail.com> wrote:
>

>> However I don't see two things:
>> 1. Automatic file update (when it's changed).
>
> less doesn't seem to do this either.

except for growing files, F key in less emulate 'tail -f' (I don't
known when this feature was introduced in less)


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