[ncl-talk] unable to pass an argument to NCL code

[Rick Brownrigg]

Hi,

I think you need to escape the quotes at the shell level. Something like
this seems to work:

# This simply echos the names of the files is current directory, from both
the shell and then as passed into NCL
for i in *; do
echo $i
ncl name_of_file=\"$i\" foo.ncl
done

foo.ncl:
print(name_of_file)


Rick



On Wed, Mar 18, 2020 at 5:46 AM Geeta Geeta via ncl-talk <ncl-talk at ucar.edu>
wrote:

> Hi.
>
> I have to run My ncl code for large number of days having same data format
> (example, -rw-r----- 1 aditya aditya 38874040 Jul  9  2018 02apr2008.ua.nc
> -rwx--x--x 1 aditya aditya 38874040 Jul 10  2018 03mar2006.ua.nc
> -rwx--x--x 1 aditya aditya 38874040 Jul 10  2018 05apr2009.ua.nc
> -rwx--x--x 1 aditya aditya 38874040 Jul 10  2018 05mar2005.ua.nc)
>
> I have written a small script that will pass on the argument
> 02apr2008.ua.nc,  03mar2006.ua.nc..... to the NCL code.
>
>
> The script (ATTACHED) is reading partcular files and assigning to the
> variable $myvar which goes as input to the code.
>
> for i in $(ls ?????????.ua.nc); do
> echo  $i
> myvar=$i
> echo $myvar
>
> First few lines of the code are
>
> SPLIT_FILE   =    str_split(name_of_file,".")
>                      print(SPLIT_FILE)
>
> name_of_file variable will be passed on by shell script.
> But variables are not being passed correctly.
>  the output is .
>
> Variable: SPLIT_FILE
> Type: string
> Total Size: 4 bytes
>             1 values
> Number of Dimensions: 1
> Dimensions and sizes:   [1]
> Coordinates:
> (0)     $myvar
>
>
> Variable: storms_file
> Type: string
> Total Size: 4 bytes
>             1 values
> Number of Dimensions: 1
> Dimensions and sizes:   [1]
> Coordinates:
> (0)     dcc.$myvar.txt
> fatal:["FileSupport.c":3973]:($myvar) has no file extension, can't
> determine type of file to open
> Segmentation fault (core dumped)
>
>
> 2. I tried to pass argument on the command line and it runs well.
> aditya at agniilap:~/geeta/ncl/Plotecmf$ ../bin/ncl 'name_of_file="
> 02apr2008.ua.nc"' ecmf.v5.ua.ncl
>
> I have to run this script in batch mode as large number of days are there.
>
> thanks
>
> Geeta._______________________________________________
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