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Getting Sequential file attribute


IBM Mainframe Forums -> CLIST & REXX
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cma rajith

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Joined: 28 May 2008
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PostPosted: Wed May 28, 2008 6:17 pm
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Hi all,

How to check in rexx for file attributes,especially block count!!
My requirement is to find out whether the file is empty or not before opening it in browse mode.LISTDS is not giving block count.
If somehow I can getthe block count in the current utilization part as in the attachement, with that I can decide whether the file is empty or not.

Thanks in advance,
Ceema Rajith
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superk

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Joined: 26 Apr 2004
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Location: Raleigh, NC, USA

PostPosted: Wed May 28, 2008 6:28 pm
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Did LISTDSI do anything for you?
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Ganesh.Deokar

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Joined: 30 Sep 2005
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PostPosted: Wed May 28, 2008 6:43 pm
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Try this:

Code:
/*rexx*/                                   
address tso                                 
list1 = listdsi("'XXXXX.XXXXX.XXXXXX'")     
say sysused             
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enrico-sorichetti

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PostPosted: Wed May 28, 2008 6:56 pm
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why bother...
did You test opening in BROWSE an empty dataset ??

check this thread an You will see why You do not have to test it beforehand

http://www.ibmmainframes.com/viewtopic.php?t=24912&highlight=ispf+browse
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cma rajith

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PostPosted: Thu May 29, 2008 12:36 pm
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Yeah,LISTDSI gave me the block count, thanks a lot!!

HOw do we suppress the message generated from the LISTDSI?
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PeD

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Location: Belgium

PostPosted: Thu May 29, 2008 1:15 pm
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OUTTRAP
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cma rajith

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PostPosted: Thu May 29, 2008 1:45 pm
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I tried with this
CALL OUTTRAP "ATR."
LISTDS "'" || DSN || "'"

MSG= OUTTRAP('OFF')

Still the mesages are coming
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PeD

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PostPosted: Thu May 29, 2008 2:15 pm
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x = OUTTRAP("ATR.")
ADDRESS TSO "LISTDS ('"DSN"')"
X = OUTTRAP("OFF')
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PeD

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PostPosted: Thu May 29, 2008 2:16 pm
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Corrected
X = OUUTRAP("OFF")
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cma rajith

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PostPosted: Thu May 29, 2008 2:44 pm
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This is also not working
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PeD

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PostPosted: Thu May 29, 2008 3:43 pm
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Ok now from the start.

First
Quote:
Yeah,LISTDSI gave me the block count, thanks a lot!!

I am not sure it did, and I am not sure what you exactly mean by "block count".

Quote:
HOw do we suppress the message generated from the LISTDSI?
You cannot ask to LISTDSI to not generate message and as well to ask to receive information from it !!!

So give us the kind of message you want to avoid.

Also, do you run this in background or in foreground ?

Finally do you just want to know if a file is empty or not? If so, LISTDSI is not convenient.

Use IDCAMS, or EXECIO and test the return code, ...

Please clarify

Cheers

Pierre
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expat

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Joined: 14 Mar 2007
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PostPosted: Thu May 29, 2008 3:43 pm
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cma rajith wrote:
This is also not working

Perhaps, just maybe if you follow the instructions below

Post your code, and the messages that you wish to dispose of

then we might actually be able to help you.
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cma rajith

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Joined: 28 May 2008
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PostPosted: Thu May 29, 2008 5:42 pm
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My code is

FATTR = LISTDSI("'"DSN"'")
IF FATTR == 0 THEN
IF SYSUSED == 0 THEN
SAY "EMPTY FILE"
ELSE
DSNCAT = 'YES'


Here I'm checking for a empty datset..so in the screen i'm expecting only 'EMPTY FILE' but what is comming

"IKJ56712I INVALID KEYWORD, "AX.IOLDI.G.DATA.AUSTRIA.G0146V00"
EMPTY FILE

Please guide me to avoid the first line from the screen
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PeD

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PostPosted: Thu May 29, 2008 6:03 pm
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Should work !!!
How is DSN filled in ?
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PeD

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PostPosted: Thu May 29, 2008 6:29 pm
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Also you can submit this online with a "trace i" option at the begining to follow the instructions step by step.
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cma rajith

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PostPosted: Thu May 29, 2008 6:30 pm
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DSN is AX.IOLDI.G.DATA.AUSTRIA.G0146V00 , it filled properly.

My problem is the message "IKJ56712I INVALID KEYWORD, "AX.IOLDI.G.DATA.AUSTRIA.G0146V00"

which is generated by LISTDSI.I want the customized display only
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PeD

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PostPosted: Thu May 29, 2008 6:35 pm
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Yes, but something is running wrong. Try the trace option : it will show you all info.

Because you cannot avoid message IKJ type.

You did not respons to that : batch or online?

Pierre
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