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prafull
New User
Joined: 08 Dec 2006
Posts: 48
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hi
can we remove first N lines or last N lines from a Input file using DFSORT? |
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IQofaGerbil
Active User
Joined: 05 May 2006
Posts: 183
Location: Scotland
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| yes |
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Frank Yaeger
DFSORT Developer
Joined: 15 Feb 2005
Posts: 7129
Location: San Jose, CA
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prafull,
You need to provide more information about exactly what you want to do. What is n? Please show an example of the records in your input file and what you expect for the output records. Also, what is the RECFM and LRECL of the input file? |
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prafull
New User
Joined: 08 Dec 2006
Posts: 48
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Frank ,
my input file is like :
1 XYZ comapny
2 File from : ABC source
3 00010008950
4 00020007950
5 00030006950
6 00040008550
7 00050078950
8
9 Total: 0041350
out of these 9 lines I want my SORTOUT file should remove first 2 lines and last 2 lines..
is it possible? how is important..
IQofaGerbil , please justify your 'yes'
Thank you |
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guptae
Moderator
Joined: 14 Oct 2005
Posts: 1208
Location: Bangalore,India
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Hi Prafull,
You cna use following sort card
| Code: |
//SYSIN DD *
OPTION SKIPREC=2
SORT FIELDS=COPY
OUTFIL FILES=1,ENDREC=5
/* |
Here i am assuming that u know the number of record in i/p file .
Hope it will be helpful |
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prafull
New User
Joined: 08 Dec 2006
Posts: 48
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Thanks Ekta!
SKIPREC=2 will remove header but I never know the number of records so removing footers is the only problem left.
Does DFSORT has any OPTION to skip records from bottom ?
Frank, expecting clues from you.
Anyway,Thanks much all. |
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IQofaGerbil
Active User
Joined: 05 May 2006
Posts: 183
Location: Scotland
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remove the first two lines as Guptae as shown
To remove the last two;
if your file is sorted in sequence then reverse that sequence and repeat the removal of the first two lines, then sort back in original order
if your file is not in sort order then use Frank's method to reverse it
ibmmainframes.com/viewtopic.php?t=10862&highlight=reverse
then remove the first two lines, then undo the revese
although I'm sure that Frank will come up with a super efficient way of doing it in one pass!
Another way?
if the second last line is the only one with spaces then omit it
eg
OMIT COND=(p,l,CH,EQ,C' ')
and
if the last line is the only one with characters = 'total', omit it also
OMIT COND=(p,l,CH,EQ,C'Total') |
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prafull
New User
Joined: 08 Dec 2006
Posts: 48
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Thanks IQofaGerbil.
The approach to remove footer (reverse the file and remove first 2 lines again) seems good.
I was using,the other way you have shown. But in my input file there can be changes in header and footer records each time.So I should not use INCLUDE/OMIT COND. |
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sril.krishy
Active User
Joined: 30 Jul 2005
Posts: 183
Location: hyderabad
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Hi,
I think by creating the dynamic control cards and using the count operator,you can delete the first 2 and last 2 records.
Thanks
Krishy |
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Frank Yaeger
DFSORT Developer
Joined: 15 Feb 2005
Posts: 7129
Location: San Jose, CA
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prafull,
Here's a DFSORT/ICETOOL job that will do what you asked for:
| Code: |
//S1 EXEC PGM=ICETOOL
//TOOLMSG DD SYSOUT=*
//DFSMSG DD SYSOUT=*
//IN DD DSN=... input file
//CTL2CNTL DD DSN=&&C2,UNIT=SYSDA,SPACE=(TRK,(1,1)),DISP=(,PASS)
//OUT DD SYSOUT=*
//TOOLIN DD *
COPY FROM(IN) USING(CTL1)
COPY FROM(IN) TO(OUT) USING(CTL2)
/*
//CTL1CNTL DD *
OUTFIL FNAMES=CTL2CNTL,REMOVECC,NODETAIL,
BUILD=(80X),
TRAILER1=(' OPTION SKIPREC=2,STOPAFT=',
COUNT-4=(M11,LENGTH=8),80:X)
/*
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prafull
New User
Joined: 08 Dec 2006
Posts: 48
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yes Frank Yaeger ,
As expected , gr8 way to finish the problem!
We are lucky to have you here.
Thank you.
sril.krishy thank you 2. |
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