Introduction

The -flush option is no longer needed in the current versions of wgrib2 except for special cases.. The code detects when you are writing to a special file like a pipe and turns on the -flush option. The only known example where you might want to use the -flush option is when writing to a file and another program is reading from the file at the same time.

The -flush option causes wgrib2 to flush the output buffers after every write. You would use this option if you were running wgrib2 as an interactive decoder or using pipes to multitask the processing.

Interactive processing will the need -flush option because under normal conditions, wgrib2 will wait until its buffers are full before writing to a device.

Usage

-flush