Re: [netcdfgroup] easy/quick way to get attribute value from shell?

From the html manual pages:

> ‘-m’
> Print variable metadata to screen (similar to ncdump -h). This displays all 
> metadata pertaining to each variable, one variable at a time. This includes 
> information on the storage properties of the variable, such as whether it 
> employs chunking, compression, or packing. Also activated using ‘--mtd’ and 
> ‘--metadata’. The ncks default behavior is to print variable metadata to 
> screen if no netCDF output file is specified. Use ‘-m’ to print variable 
> metadata to screen if a netCDF output is specified.

and

> ‘-P’
> Print data, metadata, and units to screen. The ‘-P’ switch is a convenience 
> abbreviation for ‘-C -H -M -m -u’. Also activated using ‘--print’ or ‘--prn’. 
> This set of switches is useful for exploring file contents.

There are examples of using shell scripts to make the output more precise, and 
to get global attributes.

-Roy

On May 18, 2012, at 6:18 PM, Tom Roche wrote:

> 
> Tom Roche May 18, 2012 2:25 PM
>>> Is there an easy and quick way to *get* the value of an attribute
> 
> I guess I should have said, "any attribute, by name"
> 
>>> (whether global or variable) from a (bash) shell commandline or
>>> script?
> 
> Roy Mendelssohn Fri, 18 May 2012 14:32:12 -0700
>> Have you looked at ncks in NCO
> 
> I have. Correct me if wrong, but the only *attribute* `ncks` allows
> one to query directly is "units". One can query *variable* values by
> variable name, but not attribute values by attribute name. (One can
> `cut`, `grep`, and `sed` output ... but I can do with that `ncdump`.)
> 
> Am I missing something? 
> 
> your assistance is appreciated, Tom Roche <Tom_Roche@xxxxxxxxx>
> 
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**********************
"The contents of this message do not reflect any position of the U.S. 
Government or NOAA."
**********************
Roy Mendelssohn
Supervisory Operations Research Analyst
NOAA/NMFS
Environmental Research Division
Southwest Fisheries Science Center
1352 Lighthouse Avenue
Pacific Grove, CA 93950-2097

e-mail: Roy.Mendelssohn@xxxxxxxx (Note new e-mail address)
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