Re: [ferret_users] How to pass the value from a ferret script to a c shell file ?

[Sudheer Joseph <sjo.india@xxxxxxxxx>]

Hi Chin,

                     If your objective involves taking a single variable from ferret to shell below method should work. 

#!/bin/csh -f

#embedded ferret script

ferret << STOP

let xx=10

let yy=150

let kf=xx+yy

list /clobber/file=kf.dat/nohead kf

exit

STOP

#starting c shell commands

set varInCshell = `head -1 kf.dat`

echo $varInCshell

endif

Sudheer

On Fri, Oct 28, 2011 at 6:50 AM, Hsu,Wen Chin <wenchin@xxxxxxx> wrote:

Hi,
I am not sure which email is correct one for ferret. If I send the question twice, sorry about it.
I usually embedded a ferret script in my c shell files when I need to use ferret.
However, I do not know how to save the value of a variable in ferret script and pass that value
to another variable in my c shell file. For example, I have a c shell file called aFile.csh and in it, it has something as

"#!bin/csh -f
.....
....
#embedded ferret script
ferret << STOP

use data.nc
let variableInFerret = x + y

exit
STOP
......
#starting c shell commands
set varInCshell = $variableInFerret

if( $varInCshell > 100 ) then
echo "it is 100"
endif
...
"
I calculated the value for variable, variableInFerret in ferret script and use it in my c shell file such as assigning it
to another variable and testing it.Now, I can only think of saving the value in a file by using LIST command in ferret and
then read value from it in c shell. However, it seems very inefficient. I wonder if there is any other way to achieve the same
goal.Thank you very much,

--
with best regards

Sudheer

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Sudheer Joseph                                                                 
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