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Full Discussion: Awk help needed
Top Forums UNIX for Dummies Questions & Answers Awk help needed Post 302365701 by mglenney on Wednesday 28th of October 2009 07:07:20 PM
Old 10-28-2009
Thanks for the nudge in the right direction. First off, I didn't know I could perform the calculation without removing the "K" from each number. That certainly saved some steps. Besides that, your rewrite allows me to fit it all in a single awk which makes outputting the number of lines easy. Here's what I came up with:

Code:
awk 'BEGIN { count=0 } NR > 10 && /Full GC/,/^:/ {if (/^:/) split($5, a, "[->(]"); else next; if (a[1]-a[3]<100000) count++} END { print NR; print count }' testawk.data

The 'NR > 10' will actually be 'NR > lines' once I incorporate it into the script. You can see it in my first post. This allows me to skip over log file entries checked in previous runs of the script.

Thanks again

---------- Post updated 10-28-09 at 04:07 PM ---------- Previous update was 10-27-09 at 06:25 PM ----------

All is working well except I can't seem to pass the search string to awk. Here's the snippit:

Code:
set -- $(awk -v lines=$lineslastrun -v pattern="$searchpattern" '
  BEGIN { count=0 }
  NR > lines && /Full GC/,/^:/ {if (/^:/) split($5, a, "[->(]"); else next; if (a[1]-a[3]<100000) count++}
  END { print NR; print count }
' $logfile)
totallines=$1
matches=$2

I would like to change "Full GC" to "pattern" so I can pass the string as a variable to awk. Unfortunately it only works if I put in as it is above. I have tried many versions of single and double quotes:

Code:
NR > lines && /pattern/,/^:/ {if (/^:/) split($5, a, "[->(]"); else next; if (a[1]-a[3]<100000) count++}
NR > lines && "/pattern/",/^:/ {if (/^:/) split($5, a, "[->(]"); else next; if (a[1]-a[3]<100000) count++}
NR > lines && /"pattern"/,/^:/ {if (/^:/) split($5, a, "[->(]"); else next; if (a[1]-a[3]<100000) count++}

Plus many more. None worked. Any suggestions?
 

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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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