Sponsored Content
Top Forums Shell Programming and Scripting How do I get my script to monitor a new file using tail? Post 302323177 by lstorm2003 on Friday 5th of June 2009 03:31:39 PM
Old 06-05-2009
-F or --retry doesn't seem to work on my system (AIX 5.3):
$>tail -n1 -F IMC_Stats.log
Usage: tail [-f] [-c Number|-n Number|-m Number|-b Number|-k Number] [File]
Usage: tail [-r] [-n Number] [File]
Usage: tail [+|-[Number]][l|b|c|k|m][f] [File]

$>tail -n1 --retry IMC_Stats.log
Usage: tail [-f] [-c Number|-n Number|-m Number|-b Number|-k Number] [File]
Usage: tail [-r] [-n Number] [File]
Usage: tail [+|-[Number]][l|b|c|k|m][f] [File]

Any other ideas are appreciated...

Quote:
Originally Posted by mglenney
Disclaimer: I use bash, not ksh

use -F or --retry. So:

tail -n1 -f --retry /home/dirTalk/current_dir/oamlog/ASAI.log | while read output_line

or

tail -n1 -F /home/dirTalk/current_dir/oamlog/ASAI.log | while read output_line

MG
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Bash tail monitor log file

Hi there, I have a problem here that involves bash script since I was noob in that field. Recently, I have to monitor data involve in logs so I just run command tail -f for the monitoring. The logs was generate every hour so I need to quickly change my logs every time the new hour hits according... (2 Replies)
Discussion started by: kriezo
2 Replies

2. AIX

Aix script to monitor when a file has been updated

Hi Im looking to create a Aix script to monitor a file for once it's been updated and then send an email. I dont have great scripting knowledge and have only come up with the following so far while true do find /home/test/AMQ* -mmin 1 > /home/test/scripts/output/MQERRORS exec... (2 Replies)
Discussion started by: elmesy
2 Replies

3. Shell Programming and Scripting

Script to monitor the pattern in the log file

hi All, how to find a pattern in the log file & display the above and below line for example in the log file, i have many lines, whenever i search for "Category" it should display the above line with only few parameter like i want only the location name & department name Thu Jul 02 11:05:23... (2 Replies)
Discussion started by: rithick256
2 Replies

4. Shell Programming and Scripting

script to tail file; problem with awk and special characters

Trying to use code that I found to send only new lines out of a log file by doing: while :; do temp=$(tail -1 logfile.out) awk "/$last/{p=1}p" logfile.out #pipe this to log analyzer program last="$temp" sleep 10 done Script works fine when logfile is basic text, but when it contains... (2 Replies)
Discussion started by: moo72moo
2 Replies

5. Shell Programming and Scripting

Script to monitor log file

Hi, Have written a script to monitor linux non standard log file based on line numbers, so each check store $otalinenum .. then in next check after 10 minutes it compre the current_total_line_num > last_total_line_num then it will parse the log file from last_total_line_num to... (0 Replies)
Discussion started by: Shirishlnx
0 Replies

6. Shell Programming and Scripting

Use “tail -f” to monitor and report, but the top line should be always fixed on the screen.

Title: Use “tail -f” to monitor and report, but the top line should be always fixed on the screen. Hi, dear Unix experts, I am trying to find a Unix command (or scripting) on how to continuously display a text file of its last several lines of contents. But during this displaying, I want some... (2 Replies)
Discussion started by: df3c
2 Replies

7. Shell Programming and Scripting

Shell script to monitor new file in a directory and mail the file content

Hi I am looking for a help in designing a bash script on linux which can do below:- 1) Look in a specific directory for any new files 2) Mail the content of the new file Appreciate any help Regards Neha (5 Replies)
Discussion started by: neha0785
5 Replies

8. Post Here to Contact Site Administrators and Moderators

Need script to monitor open file in Linux

Kindly advice with shell script to monitor open file in linux, if the open file count is greater then 5000 then send me an email.. command : lsof | wc -l (0 Replies)
Discussion started by: adminhelp
0 Replies

9. UNIX for Beginners Questions & Answers

Shell script to tail a file with unknown numbers

Hello, I would like to write script to tail a file for different environment But the number of lines are keep changing How can I write a script For example: env could : A, B or C and log files could be a.log, b.log and c.log with the number of lines can change say sometimes it 100 last... (9 Replies)
Discussion started by: encrypt_decrypt
9 Replies
Number::Compare(3)					User Contributed Perl Documentation					Number::Compare(3)

NAME
Number::Compare - numeric comparisons SYNOPSIS
Number::Compare->new(">1Ki")->test(1025); # is 1025 > 1024 my $c = Number::Compare->new(">1M"); $c->(1_200_000); # slightly terser invocation DESCRIPTION
Number::Compare compiles a simple comparison to an anonymous subroutine, which you can call with a value to be tested again. Now this would be very pointless, if Number::Compare didn't understand magnitudes. The target value may use magnitudes of kilobytes ("k", "ki"), megabytes ("m", "mi"), or gigabytes ("g", "gi"). Those suffixed with an "i" use the appropriate 2**n version in accordance with the IEC standard: http://physics.nist.gov/cuu/Units/binary.html METHODS
->new( $test ) Returns a new object that compares the specified test. ->test( $value ) A longhanded version of $compare->( $value ). Predates blessed subroutine reference implementation. ->parse_to_perl( $test ) Returns a perl code fragment equivalent to the test. AUTHOR
Richard Clamp <richardc@unixbeard.net> COPYRIGHT
Copyright (C) 2002,2011 Richard Clamp. All Rights Reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
http://physics.nist.gov/cuu/Units/binary.html perl v5.18.2 2011-09-21 Number::Compare(3)
All times are GMT -4. The time now is 08:43 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy