Directives
SETDEV Set file/device characteristics
  The SETDEV directive has a variety of formats that allow for the dynamic definition of file characteristics and for the definition of the system TSK tables.

Please select the format you are interested in
   
Formats SETDEV (chan) IOL= iolref$ Use the SETDEV IOL= directive to alter the various IOLists associated with a currently open channel.
  SETDEV (chan) KEY: numexpr,strexpr Use the SETDEV KEY directive to either assign or alter named keys for an open channel.
  SETDEV (chan)lcs_devtype$ Use the SETDEV directive to make dynamic changes in the value of the DEVICE TYPE field maintained by ProvideX for device files.
  SETDEV (chan) PROGRAM "prog_name" Use the SETDEV PROGRAM directive to define an Embedded I/O program which will be attached to an open channel if the file does not already have one associated with it.
  SETDEV (chan) SEP=char$ Use this form of the SETDEV directive to dynamically change the field separator for a file.
  SETDEV TSK( ) task$ Use the SETDEV TSK( ) directive to add a string to the end of the internal table for the TSK( ) function.