PRINTERS

                     *  -|     X                 

                     *         X    printer2     -O

        Printer1     *         O                 

                \                   /

                  \               /

          -------------------------                 

                                   ---------Terminal

               COMPUTER                             

                                                \\

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       |~~~~~~~~~~~~|      

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  <<<< OPTION PRINT SUBROUTINE >>>>>

OPTPRINT

 lpstat OPTIONS:

     a[list] - Prints acceptance status (with

               respect to lp) of destinations for requests.

     -d - Prints the name of the default destination

          for the lp command.

     -r - Prints the status of the line printer scheduler,

          lpsched.

     -t - Prints all status information.

   <<<<< LEFT_CLEAN SUBROUTINE >>>>>>>>>>>>>>>>>>>>>

LNEXT

ONELCLEAN

   <<<<< TERMINAL SCREEN DRAWING SUBROUTINE >>>>>>>>

UTERMINAL

                 TERMINAL               

NEXT

 CAL: #RC, 1

 $V1$

 <<<<<<< Standout Line Procedure >>>>>>>>>>

HILINE

     <<<<<< TIME POSE SUBROUTINE >>>>>>>>>

PAUSE

  q - to quit  <CR> - to continue

If they want to quit, do so

GO

 You may have guessed that a computer system may have one or more

printers.   These printers may be printing, be idle, or be turned 

off (not on-line).

 In situations where there are several users on the same system,

 the need to know the status of the printing requests arises very

 often.  The command that lets you determine the status of your

 printer(s) is lpstat (for line printer status.

 lpstat is a command that prints information about the current status

 of the line printer system.  It has several options, some of which are

 described above.  For greater details see your UNIX Reference Manual.

 Note, you may include several options on one lpstat command line!

 Let us use the lpstat command

 to find the status of the line 

 printer system on your UNIX system.

 Please enter the command to determine

 both a) The acceptance status of

 printing destinations, and b) The

 status of the line printer scheduler.

 $PROMPT$

 That is correct!

 You've got it on the 2nd try.

 Good, you understand the concept.

 Please type lpstat -r -a

 Please type lpstat -r -a

 You will be helped this time!

FORGET1

 lpstat -r -a                  

 Observe the result on the screen.

 scheduler is running

 printer accepting requests since Jan 19 16:09

 lj accepting requests since Jan 19 17:44

DOSJMP1

 Now ask the user to try another

 command, with a "-s" option!

 Now at the prompt, enter the lpstat

 command to print all status

 information for the printers on your

 UNIX system.  Note: the option you 

 will need to use is t!

 $PROMPT$

 That is correct!

 You've got it on the 2nd try.

 Good, you understand the concept.

 Please type lpstat -t

 Please type lpstat -t

 You will be helped this time!

FORGET2

 lpstat -t                      

 Observe the result above.

 scheduler is running

 system default destination: printer

 device for printer: /dev/lp1

 device for lj: /dev/lj

 printer accepting requests since Jan 19 16:09

 lj accepting requests since Jan 19 17:44

 printer printer is idle.  enabled since Jan 19 16:09

 printer lj is idle.  enabled since Jan 19 17:44