* Using a shell database
@ 2005-11-14 12:41 zzapper
2005-11-14 16:40 ` Ian Langworth
` (2 more replies)
0 siblings, 3 replies; 8+ messages in thread
From: zzapper @ 2005-11-14 12:41 UTC (permalink / raw)
To: zsh-users
Hi,
I have shell utility which stores information (between sessions) in a series of text files. I now
want to do something more complicated, and realise I should be considering using a database.
I then ran smack into a steep learning curve.
Is there a shell accessible database? gdbm?
Pointers please, examples if possible
(I realise this thread may not be particularly zshish)
--
zzapper
Success for Techies and Vim,Zsh tips
http://SuccessTheory.com/
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Using a shell database
2005-11-14 12:41 Using a shell database zzapper
@ 2005-11-14 16:40 ` Ian Langworth
2005-11-15 11:05 ` zzapper
2005-11-14 20:51 ` Marc Chantreux
2005-11-15 18:32 ` Clint Adams
2 siblings, 1 reply; 8+ messages in thread
From: Ian Langworth @ 2005-11-14 16:40 UTC (permalink / raw)
To: zzapper; +Cc: zsh-users
On 11/14/05, zzapper <david@tvis.co.uk> wrote:
> I have shell utility which stores information (between sessions) in a series of text files. I now
> want to do something more complicated, and realise I should be considering using a database.
> I then ran smack into a steep learning curve.
> Is there a shell accessible database? gdbm?
> Pointers please, examples if possible
You don't want to bring databases into your shell script. You want to
begin to use a tool that's better-suited for the job, like Perl,
Python or Ruby.
--
Ian Langworth
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Using a shell database
2005-11-14 12:41 Using a shell database zzapper
2005-11-14 16:40 ` Ian Langworth
@ 2005-11-14 20:51 ` Marc Chantreux
2005-11-15 18:32 ` Clint Adams
2 siblings, 0 replies; 8+ messages in thread
From: Marc Chantreux @ 2005-11-14 20:51 UTC (permalink / raw)
To: zsh-users
is sqlite for you ?
http://sqlite.org/
regards
mc
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Using a shell database
2005-11-14 16:40 ` Ian Langworth
@ 2005-11-15 11:05 ` zzapper
2005-11-15 12:12 ` Marc Chantreux
0 siblings, 1 reply; 8+ messages in thread
From: zzapper @ 2005-11-15 11:05 UTC (permalink / raw)
To: zsh-users
On Mon, 14 Nov 2005 11:40:26 -0500, wrote:
>On 11/14/05, zzapper <david@tvis.co.uk> wrote:
>
>> I have shell utility which stores information (between sessions) in a series of text files. I now
>> want to do something more complicated, and realise I should be considering using a database.
>> I then ran smack into a steep learning curve.
>> Is there a shell accessible database? gdbm?
>> Pointers please, examples if possible
>
>You don't want to bring databases into your shell script. You want to
>begin to use a tool that's better-suited for the job, like Perl,
>Python or Ruby.
Thanx for both replies, it would seem my requirement has crossed the invisible shell/application
boundary.I realise now that shells don't have a database I hoped there might be a real simple
"pairs" application.
I did have a phase of writing all my "scripts" in Perl, but noticed that they were much slower than
their equivalent shell scripts.
Any comments from the zsh maestros?
--
zzapper
Success for Techies and Vim,Zsh tips
http://SuccessTheory.com/
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Using a shell database
2005-11-15 11:05 ` zzapper
@ 2005-11-15 12:12 ` Marc Chantreux
2005-11-15 12:19 ` zzapper
0 siblings, 1 reply; 8+ messages in thread
From: Marc Chantreux @ 2005-11-15 12:12 UTC (permalink / raw)
Cc: zsh-users
zzapper wrote:
> I did have a phase of writing all my "scripts" in Perl, but noticed that they were much slower than
> their equivalent shell scripts.
it depends of a lot of parameters. I use perl when perl makes thinks a
lot easier or when there is a lot of content to parse.
if you can read french, i've done my own benches and my conclusion is
here : http://khatar.phear.org/shell/bench.html.
regards
mc
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Using a shell database
2005-11-15 12:12 ` Marc Chantreux
@ 2005-11-15 12:19 ` zzapper
2005-11-15 13:27 ` Marc Chantreux
0 siblings, 1 reply; 8+ messages in thread
From: zzapper @ 2005-11-15 12:19 UTC (permalink / raw)
To: zsh-users
On Tue, 15 Nov 2005 13:12:24 +0100, wrote:
>zzapper wrote:
>
>> I did have a phase of writing all my "scripts" in Perl, but noticed that they were much slower than
>> their equivalent shell scripts.
>
>
>it depends of a lot of parameters. I use perl when perl makes thinks a
>lot easier or when there is a lot of content to parse.
>
>if you can read french, i've done my own benches and my conclusion is
>here : http://khatar.phear.org/shell/bench.html.
>
Mc,
Your benchmark shows zsh being 10X quicker than Perl, that would be the order of difference that I
noticed.
I also have some shells that call perl (to complicate matters!)
--
zzapper
Success for Techies and Vim,Zsh tips
http://SuccessTheory.com/
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Using a shell database
2005-11-15 12:19 ` zzapper
@ 2005-11-15 13:27 ` Marc Chantreux
0 siblings, 0 replies; 8+ messages in thread
From: Marc Chantreux @ 2005-11-15 13:27 UTC (permalink / raw)
To: zsh-users
zzapper wrote:
> Mc,
> Your benchmark shows zsh being 10X quicker than Perl, that would be the order of difference that I
> noticed.
As my conclusion says (sorryn it's in french), it will only be true with
few content to process : perl compute things very faster than shell. In
this benchmark, perl is slower because you have to launch a huge binary
(perl interpreter) to execute a very small task.
regards
mc
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Using a shell database
2005-11-14 12:41 Using a shell database zzapper
2005-11-14 16:40 ` Ian Langworth
2005-11-14 20:51 ` Marc Chantreux
@ 2005-11-15 18:32 ` Clint Adams
2 siblings, 0 replies; 8+ messages in thread
From: Clint Adams @ 2005-11-15 18:32 UTC (permalink / raw)
To: zzapper; +Cc: zsh-users
> I have shell utility which stores information (between sessions) in a series of text files. I now
> want to do something more complicated, and realise I should be considering using a database.
> I then ran smack into a steep learning curve.
> Is there a shell accessible database? gdbm?
There have been vague plans for zsh database modules for a long time,
but they've been stalled by other issues.
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2005-11-15 18:32 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2005-11-14 12:41 Using a shell database zzapper
2005-11-14 16:40 ` Ian Langworth
2005-11-15 11:05 ` zzapper
2005-11-15 12:12 ` Marc Chantreux
2005-11-15 12:19 ` zzapper
2005-11-15 13:27 ` Marc Chantreux
2005-11-14 20:51 ` Marc Chantreux
2005-11-15 18:32 ` Clint Adams
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