nop(1) pretty-print graph file

SYNOPSIS

nop [ -p? ] [ files ]

DESCRIPTION

nop reads a stream of graphs and prints each in pretty-printed (canonical) format on stdout. If no files are given, it reads from stdin.

OPTIONS

The following options are supported:
-p
Produce no output - just check the input for valid DOT.
-?
Print usage information.

EXIT STATUS

If any errors occurred while processing any input, such as a file not found or a file containing illegal DOT, a non-zero exit value is returned. Otherwise, zero is returned.