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As you can see, data provider parameters are specified as -params=NAME=VALUE;...;NAME=VALUE. Note the need to enclose embedded whitespace within " marks to prevent the shell from treating it as a boundary between strings. The output format may be specified as "columns" or "rows". The only difference is that one is a transpose of the other. The option "-labels" indicates that the columns (or rows) should be named. Not all data providers supply these names, in which case you'll need to consult their documentation to interpret the column numbers.
Here's a simple example that retrieves an EPICS process variable, displaying in rows format.
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clarrieu@tersk08>./common/script/aidaget HR81:STN:VOLT//VAL -labels -format=rows
time 06-Nov-2006 10:30:05
status 0
severity 0
value 0.22782705806669729
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Setting Value: aidaset
The utility program named "aidaset" takes at least two mandatory arguments (the name of the target and the desired value); several optional parameters control how it operates.
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An example of setting an EPICS process variable:
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