wgrib2: -count
Introduction
The -count option just counts the number
of fields. It is very similar to the piping the output of
wgrib to the "wc -l". The advantage of using
-count is that the inventory is displayed
and the count goes to stderr. By retaining stderr, one
could make sure the expected number of records were processed.
Usage
-count
Example
$ wgrib2 fcst.grb2 -count
-sh-3.00$ wgrib2 fcst.grb2 -count
1:4:d=2007032600:HGT:1000 mb:anl:
2:422561:d=2007032600:HGT:1000 mb:3 hour fcst:
number of records: 2
The above example shows that there were two records in the file.
$ wgrib2 fcst.grb2 -count -match fcst
2:422561:d=2007032600:HGT:1000 mb:3 hour fcst:
number of records: 1
The above example shows that only 1 record had the string fcst in it.
See also: -grid_changes
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