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]
$>tail -n1 --retry IMC_Stats.log
Usage: tail [-f] [-c Number|-n Number|-m Number|-b Number|-k Number] [File]
Usage: tail [-r] [-n Number] [File]
Usage: tail [+|-[Number]][l|b|c|k|m][f] [File]
Any other ideas are appreciated...
Quote:
Originally Posted by
mglenney
Disclaimer: I use bash, not ksh
use -F or --retry. So:
tail -n1 -f --retry /home/dirTalk/current_dir/oamlog/ASAI.log | while read output_line
or
tail -n1 -F /home/dirTalk/current_dir/oamlog/ASAI.log | while read output_line
MG
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi there,
I have a problem here that involves bash script since I was noob in that field. Recently, I have to monitor data involve in logs so I just run command tail -f for the monitoring. The logs was generate every hour so I need to quickly change my logs every time the new hour hits according... (2 Replies)
Discussion started by: kriezo
2 Replies
2. AIX
Hi
Im looking to create a Aix script to monitor a file for once it's been updated and then send an email. I dont have great scripting knowledge and have only come up with the following so far
while true
do
find /home/test/AMQ* -mmin 1 > /home/test/scripts/output/MQERRORS
exec... (2 Replies)
Discussion started by: elmesy
2 Replies
3. Shell Programming and Scripting
hi All,
how to find a pattern in the log file & display the above and below line
for example in the log file, i have many lines, whenever i search for "Category" it should display the above line with only few parameter like i want only the location name & department name
Thu Jul 02 11:05:23... (2 Replies)
Discussion started by: rithick256
2 Replies
4. Shell Programming and Scripting
Trying to use code that I found to send only new lines out of a log file by doing:
while :; do
temp=$(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
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
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
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
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
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
LEARN ABOUT MOJAVE
number::compare
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)