NAME
       gfgrep - search a file for a pattern
SYNOPSIS
       gfrun gfarm:gfgrep -o output-gfarm-URL pattern input-gfarm-URL ...
       gfrun gfarm:gfgrep -o output-gfarm-URL -e pattern input-gfarm-URL ...
DESCRIPTION
       gfgrep  is  a  sample  program  of  parallel  applications  executed by
       gfrun(1) as well as an example to create a Gfarm file in the local file
       view.
       gfgrep  searches a pattern from input-gfarm-URL, and outputs to output-
       gfarm-URL.
       Every parallel application executed by gfrun(1) should interpret the -I
       and -N options that show the rank and the size of the parallel program,
       respectively, and call gfs_pio_set_local().
OPTIONS
       -e pattern
              is useful to protect patterns beginning with -.
       -o gfarm-URL
              specifies an output Gfarm file.
       -?     displays a list of command options.