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3 michaesp 1 
      program getvarnames
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c     ***********************************************************************
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c     * Get list of variables on netCDF file                                *
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c     * Michael Sprenger / Spring, summer 2016                              *
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c     ***********************************************************************
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      use netcdf
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      implicit none
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      integer      nvars,ierr
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      integer      cdfid,i
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      character*80 cdfname
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      character*80 vnam(200)
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      integer   iargc
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      character*(80) arg
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c     check for sufficient requested arguments
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      if (iargc().ne.1) then
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         print*,'USAGE: getvars NetCDF-filename'
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         call exit(1)
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      endif
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c     read and transform input
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      call getarg(1,arg)
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      cdfname=trim(arg)
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c     Get list and write to standard out
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      call input_open    (cdfid,cdfname)
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      call input_getvars (cdfid,vnam,nvars)
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      call input_close   (cdfid)
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      do i=1,nvars
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        write(*,*)  vnam(i)
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      enddo
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      end