gc - count graph components
gc [ -necCaDUrsv? ] [ files ]
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.
The following options are supported:
- Count nodes.
- Count edges.
- Count connected components.
- Count clusters. By definition, a cluster is a graph or subgraph whose name
begins with "cluster".
- Count all. Equivalent to -encC
- Recursively analyze subgraphs.
- Print no output. Only exit value is important.
- Only analyze directed graphs.
- Only analyze undirected graphs.
- Verbose output.
- Print usage information.
By default, gc returns the number of nodes and edges.
The following operand is supported:
- Names of files containing 1 or more graphs in dot format. If no
files operand is specified, the standard input will be used.
The following exit values are returned:
- Successful completion.
- The -U or -E option was used, and a graph of the wrong type
Emden R. Gansner <email@example.com>