Close - ZiLOG Z80-RIO Operating System User's Manual

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5.5
CLOSE
SYNTAX
Close u/*
DESCRIPTION
CLOSE
(Internal Command)
Generates a Close (06) I/O request for (hexadecimal) logical
unit 'u' or all logical units ('*').
Error returns are ignored.
I/O UNIT UTILIZATION
As noted above
EXAMPLES
CLOSE 5
generates a Close I/O request for logical unit 5.
CLOSE *
generates a Close I/O request for all logical units.
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