tred:tldr:fb522
The command you provided is using the "tred" command, which is used to find the transitive reduction of a directed graph. Here is the breakdown of the command:
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"tred": This is the command itself, which stands for "transitive reduction" and is used to operate on a directed graph.
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"${path-to-input1-gv}": This is the first input file, specified by its path. It is a Graphviz DOT file (with the .gv extension) that represents a directed graph.
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"${path-to-input2-gv ---}": This is the second input file, also specified by its path. It follows the same format as the first input file and represents another directed graph.
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">": This is the output redirection operator, used to specify where the output of the command should be redirected to.
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"${path-to-output-gv}": This is the output file path, where the transitive reduction of the input graphs will be stored. Again, it is a Graphviz DOT file.
By running this command, you are instructing the "tred" command to find the transitive reduction of the two input graphs (specified by the first and second input file paths). The resulting transitive reduction graph will be saved in the output file (specified by the output file path).