gvgen
Generate simple, structured abstract graphs. tldr-pages
On several platforms
Several platforms
Generate a cycle with 10 vertices and edges and write it to stdout
gvgen -c 10IdentifyGenerate a 4×3 grid
gvgen -g 4,3IdentifyGenerate a binary tree of height 5
gvgen -t 5IdentifyGenerate a complete bipartite graph with 3 and 4 vertices
gvgen -b 3,4IdentifyCreate a random graph and output it to a file
gvgen -r 10,5 -o random.gvIdentifyGenerate a directed graph with verbose output
gvgen -d -v -c 6IdentifyDisplay help
gvgen -?Identify