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GC
Section: User Commands (1)
Updated: 21 March 2001
Index
Return to Main Contents
NAME
gc - count graph components
SYNOPSIS
gc
[
-necCaDUrs?
]
[
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.
- -?
-
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>
SEE ALSO
wc(1), acyclic(1), gvpr(1), gvcolor(1), ccomps(1), sccmap(1), tred(1), libgraph(3)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- OPTIONS
-
- OPERANDS
-
- EXIT STATUS
-
- AUTHOR
-
- SEE ALSO
-
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