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Top Forums Shell Programming and Scripting Extract and exclude rows based on duplicate values Post 303000149 by Mannu2525 on Wednesday 5th of July 2017 07:59:15 AM
Old 07-05-2017
Here you go -

Code:
# cat examplefile.txt
ghi|NN603762|eee
mno|NN607265|ttt
pqr|NN613879|yyy
stu|NN615002|uuu
jkl|NN607265|rrr
vwx|NN615002|iii
yzA|NN618555|ooo
def|NN190486|www
BCD|NN628717|ppp
abc|NN190486|qqq
EFG|NN628717|aaa
HIJ|NN628717|sss

## Duplicate
# awk 'BEGIN { FS="|" } { c[$2]++; l[$2,c[$2]]=$0 } END { for (i in c) { if (c[i] > 1) for (j = 1; j <= c[i]; j++) print l[i,j] } }'  examplefile.txt
stu|NN615002|uuu
vwx|NN615002|iii
mno|NN607265|ttt
jkl|NN607265|rrr
BCD|NN628717|ppp
EFG|NN628717|aaa
HIJ|NN628717|sss
def|NN190486|www
abc|NN190486|qqq

## Non-Duplicate
# awk 'BEGIN { FS="|" } { c[$2]++; l[$2,c[$2]]=$0 } END { for (i in c) { if (c[i] <= 1) for (j = 1; j <= c[i]; j++) print l[i,j] } }'  examplefile.txt
yzA|NN618555|ooo
ghi|NN603762|eee
pqr|NN613879|yyy

This User Gave Thanks to Mannu2525 For This Post:
 

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END(7)							  PostgreSQL 9.2.7 Documentation						    END(7)

NAME
END - commit the current transaction SYNOPSIS
END [ WORK | TRANSACTION ] DESCRIPTION
END commits the current transaction. All changes made by the transaction become visible to others and are guaranteed to be durable if a crash occurs. This command is a PostgreSQL extension that is equivalent to COMMIT(7). PARAMETERS
WORK, TRANSACTION Optional key words. They have no effect. NOTES
Use ROLLBACK(7) to abort a transaction. Issuing END when not inside a transaction does no harm, but it will provoke a warning message. EXAMPLES
To commit the current transaction and make all changes permanent: END; COMPATIBILITY
END is a PostgreSQL extension that provides functionality equivalent to COMMIT(7), which is specified in the SQL standard. SEE ALSO
BEGIN(7), COMMIT(7), ROLLBACK(7) PostgreSQL 9.2.7 2014-02-17 END(7)
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