12-28-2009
Log file text parsing
I'm new to scripting and was wondering if there was a way to accomplish what I want below using shell script(s).
If there is a log file as follows, where the id is the unique id of a process, with the timestamp of when the process began and completed displayed, would it be possible to find the time taken for each process (i.e. end time - start time)? Also, would it be possible to parse the text log to see if there are any processes that never completed (i.e. those that do not have a end id #X posted)?
BEGIN ID #1 - 2009-12-27 13:31:40.123894
END ID #1 - 2009-12-27 13:31:40.127205
BEGIN ID #2 - 2009-12-27 13:31:42.445600
BEGIN ID #3 - 2009-12-27 13:31:42.445635
END ID #3 - 2009-12-27 13:31:42.451483
END ID #2 - 2009-12-27 13:31:42.578831
I'm not looking for the actual script. Just want to know if something like this is possible, and if so, what/where should I be looking at?
Thanks in advance to any insight anyone can provide.
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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)