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Top Forums UNIX for Dummies Questions & Answers AWK Output not working with tail -f Post 302356346 by scott_tiger on Friday 25th of September 2009 08:17:42 AM
Old 09-25-2009
Viola !! Its Working

Quote:
Originally Posted by jlliagre
This should work:
Code:
tail -f alarms.log | awk '/CRITICAL_ALM/ {if ($12==8974) {system("date")}}'


Hi .. Awesome , its working ...You are GREAT !!!! Many many Thanks, I am able to implement this Logic and complete my project now .. Many Many Thanks Once Again . ImageCheers
Scott
 

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TAILF(1)							   User Commands							  TAILF(1)

NAME
tailf - follow the growth of a log file SYNOPSIS
tailf [OPTION] file DESCRIPTION
tailf will print out the last 10 lines of a file and then wait for the file to grow. It is similar to tail -f but does not access the file when it is not growing. This has the side effect of not updating the access time for the file, so a filesystem flush does not occur peri- odically when no log activity is happening. tailf is extremely useful for monitoring log files on a laptop when logging is infrequent and the user desires that the hard disk spin down to conserve battery life. Mandatory arguments to long options are mandatory for short options too. -n, --lines=N, -N output the last N lines, instead of the last 10. -V, --version Output version information and exit. -h, --help Display help and exit. AUTHOR
This program was originally written by Rik Faith (faith@acm.org) and may be freely distributed under the terms of the X11/MIT License. There is ABSOLUTELY NO WARRANTY for this program. The latest inotify based implementation was written by Karel Zak (kzak@redhat.com). SEE ALSO
tail(1), less(1) AVAILABILITY
The tailf command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. util-linux February 2003 TAILF(1)
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