Convert a graph from
gvtogmlformat. Converters:gml2gv,gv2gml,gv2gxl,gxl2gv,graphml2gv&mm2gv. More information: https://graphviz.org/pdf/gml2gv.1.pdf.
gv to gml format:gv2gml -o output.gml input.gv
stdin and stdout:cat input.gv | gv2gml > output.gml
gv2gml -?