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Full Discussion: Grep -c text processing of a log file
Top Forums Shell Programming and Scripting Grep -c text processing of a log file Post 302956710 by ctrld on Friday 2nd of October 2015 08:22:04 AM
Old 10-02-2015
Grep -c text processing of a log file
I have a log file with below format.

Log File:

Code:
1 started job on date & time JOB-A
2 started job on date & time JOB-B
3 completed job on data & time JOB-A
4 started job on date & time JOB-C
5 started job on date & time JOB-D
6 completed job on data & time JOB-B
7 started job on date & time JOB-E
8 started job on date & time JOB-F
9 completed job on data & time JOB-C
10 completed job on data & time JOB-D 
12 completed job on data & time JOB-F

As given above I could see that E is not completed and hence is missing from log file. I am trying to find those jobs which are like E. That is having one entry for started and no entry for completed. I could do a

Code:
grep -c "started" Logfile
grep -c "completed" Logfile

and match them. That doesn't help me to find the jobs which are not completed. I am sure there is a better way to do it. One more thing to add, I don't have the list of job names.
Last edited by Scrutinizer; 10-03-2015 at 08:03 PM.. Reason: quote tags of input file -> code tags
 

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LEARN ABOUT OPENSOLARIS

starting

starting(7)                                              Miscellaneous Information Manual                                              starting(7)

NAME

       starting - event signalling that a job is starting

SYNOPSIS

       starting JOB=JOB INSTANCE=INSTANCE [ENV]...

DESCRIPTION

       The  starting  event is generated by the Upstart init(8) daemon when a new instance of a job begins starting.  The JOB environment variable
       contains the job name, and the INSTANCE environment variable contains the instance name which will be empty for single-instance jobs.

       init(8) will wait for all services started by this event to be running, all tasks started by this event  to  have  finished  and  all  jobs
       stopped by this event to be stopped before allowing the job to continue starting.

       This allows jobs to effectively insert themselves as dependencies of other jobs.  The event is typically combined with the stopped(7) event
       by services.

       Job configuration files may use the export stanza to export environment variables from their own environment into the starting event.   See
       init(5) for more details.

EXAMPLE

       A service that wishes to be running whenever another service would be running, started before and stopped after it, might use:

              start on starting apache
              stop on stopped apache

       A task that must be run before another task or service is started might use:

              start on starting postgresql

SEE ALSO

       started(7) stopping(7) stopped(7) init(5)

Upstart                                                             2009-07-09                                                         starting(7)
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