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Full Discussion: Last two logins script
Top Forums Shell Programming and Scripting Last two logins script Post 302379213 by dennis.jacob on Thursday 10th of December 2009 12:20:16 AM
Old 12-10-2009
Try:

awk '{ A[$1]=_p"\n"$0;_p=$0; } END { for ( e in A) print A[e] }' file
 

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END(7)								   SQL Commands 							    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 [commit(7)]. PARAMETERS
WORK TRANSACTION Optional key words. They have no effect. NOTES
Use ROLLBACK [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 [commit(7)], which is specified in the SQL standard. SEE ALSO
BEGIN [begin(7)], COMMIT [commit(7)], ROLLBACK [rollback(7)] SQL - Language Statements 2010-05-14 END(7)
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