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GC(1)                       General Commands Manual                      GC(1)
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 AT research.com>
SEE ALSO
       wc(1),  acyclic(1), gvpr(1), gvcolor(1), ccomps(1), sccmap(1), tred(1),
       libgraph(3)
                                 21 March 2001                           GC(1)