HELP POPDEVOUT Revised by Fran Evelyn, July 85
popdevout -> device
POPDEVOUT is an active variable which holds the device for the standard output
channel (written to by *CHAROUT). Assigning to it,
<device> -> popdevout
enables a new device to be assigned to the standard channel, and can be used
along with the updaters of POPDEVIN and POPDEVERR to redirect standard I/O
after SYSFORKing a child process, and before SYSEXECUTEing a new image.
See also
REF *SYSIO - for more on Input/Output procedures
HELP *CHARIN - reads in characters from the user's terminal
HELP *POPDEVIN - the device for the standard input channel
HELP *POPDEVERR - the device for the standard error channel
HELP *POPDEVRAW - the device for 'raw' input/output from the terminal
HELP *SYSFORK - forks the current POPLOG process
HELP *SYSEXECUTE - runs a file in place of current POPLOG image
--- C.all/help/popdevout -----------------------------------------------
--- Copyright University of Sussex 1987. All rights reserved. ----------Author: Revised by Fran Evelyn, July 85