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Full Discussion: Parsing log file and print latest number in loop
Top Forums Shell Programming and Scripting Parsing log file and print latest number in loop Post 302901753 by Ariean on Thursday 15th of May 2014 11:33:45 AM
Old 05-15-2014
Parsing log file and print latest number in loop
Hello All,
I have an awk script which parses my log file and prints number grepping from a specific line/pattern, now i have to come with a shell script to continue reading the log untill the job is completed, which i would know while reading session log untill process encounters a final line/statement as shown in the IF LOOP of my below shell script, encountering that line shell script should exit. so while reading this log file this awk script should be executed on the same log file to print latest number only, say my awk script output is as shown below

awk '$1 ~ "^WRITER_" {p=1;next} p&&/X_fc_Loan/{p++;next}; p==2 && NF>=6 && $6 !~/[^0-9]/{print $6;p=0}' s_GenerateXMLDataFile.log

Code:
27213
62087
62087
62090

it should print only the last number 62090, as this number keeps incrementing while job is running. Please find attached log file also.


Algorithm of the shell Script(needs to be tweaked):

Code:
#!/bin/bash

while read line
do
	for i in `awk '$1 ~ "^WRITER_" {p=1;next} p&&/X_fc_Loan/{p++;next}; p==2 && NF>=6 && $6 !~/[^0-9]/{print $6;p=0}' s_GenerateXMLDataFile.log`
	do
		echo max($i)
	done

STRING=`echo $line | awk '{print $2" "$3" "$4" "$5}'`


if [ $STRING = "TM_6020 Session [s_GenerateXMLDataFile] completed" ]
then
	exit 1
fi

done < s_GenerateXMLDataFile.log

Thank you.
s_GenerateXMLDataFile2.txt (24.4 KB) 
Last edited by Ariean; 05-15-2014 at 12:40 PM..
 

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LEARN ABOUT OSF1

log

log(8)							      System Manager's Manual							    log(8)

NAME

       log - Records input and output from a program

SYNOPSIS

       /usr/sbin/log <logfile> <command>

OPERANDS

       The file in which to record the interaction being logged.  The command to execute.

DESCRIPTION

       The  log  program  runs <command> and logs the input to and output from <command> to the <logfile> file.  Input and output are logged until
       <command> exits, the log program exits, and the exit status of <command> is returned.

       The log program is used by the system  installation  procedure  and  the  it(8)	command  to  create  the  /var/adm/smlogs/install.log  and
       /var/adm/smlogs/it.log installation log files.

RESTRICTIONS

       Because	the  log  program is used in the installation standalone environment, program size was the greatest concern in its implementation.
       The log program does not search for the PATH variable to locate <command> and error messages are terse.

       The log program causes <command> to take standard input from and write standard output and standard error to  UNIX  pipes.   Some  commands
       will  not  be able to operate in this environment; therefore, it is suggested that you use the script(1) command instead.  UNIX shells will
       not issue prompts when run from log unless the shell is started with an explicit interactive switch (-i for most shells).  For example, log
       foo.tmp /sbin/sh -i

       In the previous example, foo.tmp is the name of <logfile>.

       The  log  program  intercepts  end-of-file (usually Ctrl/d).  Therefore programs which normally receive end-of-file as an exit command must
       exit by some other means.

ERRORS

       Log open error

   Explanation:
       The log program was unable to open <logfile>. Verify that the directory exists and that ownerships and permissions are set correctly.

       Exec Error

   Explanation:
       The log program was unable to execute <command>. Verify that you specified a full pathname for <command> and  that  <command>  is  an  exe-
       cutable file.

       Fork Error

   Explanation:
       The log program was unable to create one of the processes it requires to log data.

SEE ALSO

       Commands: it(8), script(1)

																	    log(8)
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