[Cluster-devel] [PATCH] add format and filtering options to cman_tool

[Ryan O'Hara]

Below is a patch that will add the ability to filter the output of 
'cman_tool nodes' by nodename, as well as specify the format of the output.

Filtering by nodename is done via the -n <nodename> option. Multiple 
nodes can be specified per usual.

Formatting can be done via the -F <opt1,opt2,...> option, where opt1, 
opt2, etc. can be one of four things: id, name, type, and addr. These 
will output the node id, node name, type, and address(es) for the 
node(s) respectively. Note that this is not a complete set of options as 
they correspond to information available from cman_tool, but it does 
achieve the goal.

This is intended to give users a way to extract specific information 
about a node (or node), which might be useful for scripts, etc.

Comments welcome.

-Ryan

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