Section 1 · User commands

gc.1

Package: graphviz

GC

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
OPERANDS
EXIT STATUS
AUTHOR
SEE ALSO

NAME

gc − count graph components

SYNOPSIS

gc [ −necCaDUrsv? ] [ files ]

DESCRIPTION

gc is a graph analogue to wc in that it prints to standard output the number of nodes, edges, connected components or clusters contained in the input files. It also prints a total count for all graphs if more than one graph is given.

OPTIONS

The following options are supported:


	−n		Count nodes.
	−e		Count edges.
	−c		Count connected components.
	−C		Count clusters. By definition, a cluster is a graph or subgraph whose name begins with “cluster”.
	−a		Count all. Equivalent to −encC
	−r		Recursively analyze subgraphs.
	−s		Print no output. Only exit value is important.
	−D		Only analyze directed graphs.
	−U		Only analyze undirected graphs.
	−v		Verbose output.
	−?		Print usage information.

By default, gc returns the number of nodes and edges.

OPERANDS

The following operand is supported:


	files		Names of files containing 1 or more graphs in dot format. If no files operand is specified, the standard input will be used.

EXIT STATUS

The following exit values are returned:


	0		Successful completion.
	1		The −U or −E option was used, and a graph of the wrong type was encountered.

AUTHOR

Emden R. Gansner <erg@research.att.com>