This is my dirty little list of things to make my life with Igor easier.

// This function performs a command on a list of waves. The wave can only be used once in the command.
// Example: updategraphs("ColorScale/W=","/C/N=text0/B=1") will execute
// ColorScale/W='FoobarGraph'/C/N=text0/B=1, thus making all the f(z) colorscale backgrounds transparent.
function updategraphs(Commandfront,CommandRear)

string CommandFront, CommandRear
string GraphNames

Variable i=0,ListLength=0

//Find all the graphs that are currently displayed, return a semicolon seperated list.
//Edit the first "*" to something like "SignalGraph_*" to restrict to common strings.
//See winlist function for details in the igor guide.
Graphnames=Winlist("*",";","WIN:1")

//get the length of the list of graphs
ListLength=ItemsInList(Graphnames,";")

//Step through the list and exectute the commands
for(i=0; i<ListLength; i+=1)

	 //Fire off the love on the command line
	 Execute CommandFront+StringFromList(i,Graphnames)+CommandRear
endfor

end

(added 091115)