1 May 2002
gfgrep 1 Gfarm
gfgrep search a file for a pattern
`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.