1GC(1)                       General Commands Manual                      GC(1)
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NAME

6       gc - count graph components
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SYNOPSIS

9       gc [ -necCaDUrs?  ] [ files ]
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DESCRIPTION

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

18       The following options are supported:
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20       -n     Count nodes.
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22       -e     Count edges.
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24       -c     Count connected components.
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26       -C     Count clusters. By definition, a cluster is a graph or  subgraph
27              whose name begins with "cluster".
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29       -a     Count all. Equivalent to -encC
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31       -r     Recursively analyze subgraphs.
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33       -s     Print no output. Only exit value is important.
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35       -D     Only analyze directed graphs.
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37       -U     Only analyze undirected graphs.
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39       -?     Print usage information.
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41       By default, gc returns the number of nodes and edges.
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OPERANDS

44       The following operand is supported:
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46       files   Names  of  files containing 1 or more graphs in dot format.  If
47               no files operand is specified, the standard input will be used.
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EXIT STATUS

50       The following exit values are returned:
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52       0   Successful completion.
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54       1   The -U or -E option was used, and a graph of  the  wrong  type  was
55           encountered.
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AUTHOR

58       Emden R. Gansner <erg@research.att.com>
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SEE ALSO

61       wc(1),  acyclic(1), gvpr(1), gvcolor(1), ccomps(1), sccmap(1), tred(1),
62       libgraph(3)
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66                                 21 March 2001                           GC(1)