Purpose
Take one or more images with the LRIS red and blue cameras, using the
current instrument settings, without opening the shutter
Usage
goidarkbr [-nowait] [nexp]
Arguments
-nowait = return before readout of last image in loop
nexp = number of exposure to take (default=1)
Output
Text feeback is sent to the terminal.
Exit values
0 = normal completion
1 = wrong number of arguments
2 = error during exposure
Example
1) Take single LRIS red and blue dark exposures
goidarkbr
2) Take 10 LRIS red and blue dark exposures
goidarkbr 10
3) Take 10 LRIS red and blue dark exposures, and exit when the
final one begins to readout
goidarkbr -nowait 10