Re: [ferret_users] spawn command gawk string arrays

[Sudheer Joseph <sjo.india@xxxxxxxxx>]

Hi Patrick,
                      I do not know if below method suites your actual requirement but it works for  your example
yes? list {spawn: 'echo Hello ferreters | cut -f1 -d" " '}
or yes? let  A= {spawn: 'echo Hello ferreters | cut -f1 -d" " '}
here fno is the field number and d" " is the delimiter of the field

Sudheer

On Wed, Mar 24, 2010 at 4:46 PM, Brockmann Patrick <Patrick.Brockmann@xxxxxx> wrote:

Hi all,

Is there a simple way to use gawk through the spawn command and get the result in string array ?

Example:

in shell
$ echo Hello ferreters |  awk '{print $2}'

in ferret
yes? spawn echo Hello ferreters | awk '{print $2}'

But how to get the result in a string array like

yes? LET a = {spawn:"ls *.nc"}
yes? LIST a

yes? let A = {spawn:"echo Hello ferreters | awk '{print $2}'"}
**ERROR: command syntax: {spawn:"echo Hello ferreters | awk '{print $2}'"}
        unclosed quotation, parenthesis, or bracket

Up to now, I have used a trick by passing by an external shell script like:
let A = {spawn:"echo Hello ferreters | awk -f get_2nd.awk"}

but that is not as easy as it could be.
Could the syntax parsing of the spawn command be changed ?

Patrick

-- 
with best regards

Sudheer 

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Sudheer Joseph                                                                  
Scientist                                                                                     
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