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10. Command Line Options

Before going into the details of batch processing and listing fsc2's command line options a remark concerning the use of several instances of fsc2: Until version 2.4.0 only a single instance of fsc2 could be run. This limitation was deliberate in order to avoid having different instances trying to access the same devices at the same time. With version 2.4.0 this limitation has been removed and devices instead are "locked" by an instance of fsc2 while using them, and another instance trying to gain access to an already locked device will be notified and output a suitable error message. Devices controlled via GPIB, LAN and serial ports as well as devices, that are PCI cards, are locked individually (in the case of GPIB devices by use of an extra program, the "GPIB daemon" gpibd, in the other cases via UUCP style lock files). Devices connected via USB (except USB-serial converters, which are treated like serial port devices) and via RULBUS currently get locked as groups, i.e. only one instance of fsc2 can access USB or RULBUS devices. This restriction may be removed in later versions.


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