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How to remove duplicates from the .dat file

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# 1  
Old 06-15-2011
How to remove duplicates from the .dat file
All,

I have a file 1181CUSTOMER-L061411_003500.dat.Z having duplicate records in it.
Code:
bash-2.05$ zcat 1181CUSTOMER-L061411_003500.dat.Z|grep "90876251S"
 
90876251S|ABG, AN ADAYANA COMPANY|3550 DEPAUW BLVD|||US|IN|INDIANAPOLIS||DAL|46268||||||GEN|||||||USD|||ABG, AN ADAYANA COMPANY|||||||||Xerox Duns XNAC Link|Researched Legal Name||0|||1181|051726412|125051347
 
90876251S|ABG, AN ADAYANA COMPANY|3550 DEPAUW BLVD|||US|IN|INDIANAPOLIS||DAL|46268||||||GEN|||||||USD|||ABG, AN ADAYANA COMPANY|||||||||Xerox Duns XNAC Link|Researched Legal Name||0|||1181|051726412|125051347

my query is how to remove the duplicate record from a file with the help of a Unix command. Here I have to remove the second data from the file.

Regards
Oracle User
# 2  
Old 06-15-2011
If it's ok to lose the original order then
Code:
sort -u < YOURFILE

---

Oh, i didn't understand question.
Last edited by yazu; 06-15-2011 at 01:17 AM..
# 3  
Old 06-15-2011
Similar questions are asked every week. Look for solution in forum first should be better way.

Code:
awk -F \| '!a[$1]++' infile

# 4  
Old 06-15-2011
we cannot change the order.

Regards
Oracle User
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