Introduction

The -end option stops the processing of the grib file after one line of the inventory has been written. The -end option is designed to improve speed when used with the -match option

Usage

-end

Example

$ wgrib2 ../example/eta.t00z.awphys18.grb2 -match "HGT:500 mb" -text hgt.txt -end 

The above line writes out the first 500 mb HGT field to the file hgt.txt and stops 
reading the file.

$ wgrib2 ../example/eta.t00z.awphys18.grb2 -match "HGT:500 mb" -text hgt.txt -end 

The above line writes out all 500 mb HGT fields to the file hgt.txt.  This wastes 
time if you only have one matching field.