-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.