SHOWIN
Reports the status of input device files.
[#Innn ]
SHOWIN [STATUS ]
[SP ]
[item [;item [;...]]]
Where item is:
[ {@J }]
[ {@S }] [ACTIVE]
[DEV=ldev] [JOB= {@ }] [OPENED]
[ {[#]Jnnn}] [READY ]
[ {[#]Snnn}]
SHOWIN JOB=@S;OPENED