[gradsusr] get output from shell command

[Becker, Bernd]

Chuck, 
nice solution,
but if you have 17 grads shells running in parallel, eventually
one of them may overwrite sysdate.dat and that would be bad. 

Thanks!
Bernd
--
Bernd Becker   Climate Impacts Product Development
Met Office Hadley Centre    FitzRoy Road  Exeter   Devon EX1 3PB  United
Kingdom
Tel.: +44 (0) 1392 884511 Fax: +44 (0)870 900 5050
E-mail:bernd.becker at metoffice.gov.uk -
http://www.metoffice.gov.uk/research/our-scientists/seasonal-to-decadal/
bernd-becker


-----Original Message-----
From: gradsusr-bounces at gradsusr.org
[mailto:gradsusr-bounces at gradsusr.org] On Behalf Of Charles Seman
Sent: 16 March 2011 18:15
To: GrADS Users Forum
Subject: Re: [gradsusr] get output from shell command

Bernd,

Arindam Chakraborty sent a technique to the Listserv (email exchange
attached):

'!date > sysdate.dat'
 d = read('sysdate.dat')
 d1 = sublin(d,2)
 say d1



Hope this helps,
Chuck

Becker, Bernd wrote:
> Hello,
>
> how do I get the output from shell command "date"
> into the grads shell?
>
> '!date'
> res  = result
> say rc    res
> res=sublin(rc,2)
> say rc    res
> say subwrd(res   ,2)
>
> doesn't do it.
>
> Te following does, but with caveats:
> I got this far: 
>
> '!date -d 'fxdate' +%b > ./erp2' 
> record2=read('./erp2')
> mon=sublin(record2,2)
>
> but it is unsave if multiple processes run in parallel and overwrite 
> erp2. Not good enough.
>
> many thanks!
>
> Bernd.
>
> --
> Bernd Becker   Climate Impacts Product Development
> Met Office Hadley Centre    FitzRoy Road  Exeter   Devon EX1 3PB
United
> Kingdom
> Tel.: +44 (0) 1392 884511 Fax: +44 (0)870 900 5050 
> E-mail:bernd.becker at metoffice.gov.uk - 
> http://www.metoffice.gov.uk/research/our-scientists/seasonal-to-decada
> l/
> bernd-becker
>
>
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> gradsusr mailing list
> gradsusr at gradsusr.org
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>   

-- 

Please note that Charles.Seman at noaa.gov should be considered my NOAA
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