Sponsored Content
Top Forums Shell Programming and Scripting Monitor log file and execute command Post 302219126 by danielsbrewer on Monday 28th of July 2008 06:33:46 AM
Old 07-28-2008
Monitor log file and execute command

I would like to monitor a log file using a shell script and as soon as a line with a certain string in it appears I would like to run a program. I have been playing around with doing this using tail -f, but cannot get it to work. I found something similar here:
https://www.unix.com/shell-programmin...sing-tail.html

The restriction on this is that the monitoring script needs to be in sh or ash as I am using busybox.

Any hints? Many thanks
 

10 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. Solaris

script to monitor partition cant execute

Hi... I'm trying to run this script by using cronjob but it doesnt work. The purpose of this script is to monitor my oracle database partition when the size is less than 1gb, the script will trigger an email to my email address to alert about partition size... (9 Replies)
Discussion started by: adzuanamir
9 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

Monitor dynamic log file for a particular Error

Hi Folks, I need help in creating a script to monitor a continuously updating log for one particular error. If the the script finds the error it should send out an email. Thanks for all ur help (2 Replies)
Discussion started by: a12ka4
2 Replies

5. Shell Programming and Scripting

Continiously monitor the log file

Hi Friends, I am trying to write a script which continiously monitor one specific error message from a log file. This script should continiously monitor the file for the error and send out the email when detect the error message. I tried the below command but fails. Please help me. tail -f... (4 Replies)
Discussion started by: arumon
4 Replies

6. HP-UX

Script to monitor /var/opt/resmon/log/event.log file

AM in need of some plugin/script that can monitor HP-UX file "/var/opt/resmon/log/event.log" . Have written a scrip in sh shell that is working fine for syslog.log and mail.log as having standard format, have interrogated that to Nagios and is working as I required . But same script failed to... (3 Replies)
Discussion started by: Shirishlnx
3 Replies

7. Shell Programming and Scripting

How to monitor log file for a Error and generate the e-mail ( Please help)

This is my log file and this is live log. Any abnormal error other than following I need to generate the email. Log path : /DER/app/admin/ABC/bdump/erg.log Current log# 2 seq# 103046 mem# 0: /ora2/oradata/ABC/redo02a.log Current log# 2 seq# 103046 mem# 1:... (7 Replies)
Discussion started by: hishanms
7 Replies

8. 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

9. Shell Programming and Scripting

Monitor log file

Hi, I need to amend an existing ksh script so that it runs a process (stop weblogic) and in parallel needs to monitor a log file (startup.log) in the background for a certain string (e.g. unable to stop weblogic). If the string appears in the log i need to kill the stop weblogic process. ... (5 Replies)
Discussion started by: dholmaster
5 Replies

10. UNIX for Beginners Questions & Answers

How do I add a log file path to a vi file to monitor all the changes made to the file?

I'm curious to know how do I add an empty log file (test1.log) to an existing text file to monitor all the changes made to a.txt. Is this expression export PATH=$PATH:/home/test1.log right to be added to the text file a.txt? (5 Replies)
Discussion started by: TestKing
5 Replies
SCRIPT(1)						    BSD General Commands Manual 						 SCRIPT(1)

NAME
script -- make typescript of terminal session SYNOPSIS
script [-a] [-k] [-q] [-t time] [file [command ...]] DESCRIPTION
The script utility makes a typescript of everything printed on your terminal. It is useful for students who need a hardcopy record of an interactive session as proof of an assignment, as the typescript file can be printed out later with lpr(1). If the argument file is given, script saves all dialogue in file. If no file name is given, the typescript is saved in the file typescript. If the argument command ... is given, script will run the specified command with an optional argument vector instead of an interactive shell. Options: -a Append the output to file or typescript, retaining the prior contents. -k Log keys sent to program as well as output. -q Run in quiet mode, omit the start and stop status messages. -t time Specify time interval between flushing script output file. A value of 0 causes script to flush for every character I/O event. The default interval is 30 seconds. The script ends when the forked shell (or command) exits (a control-D to exit the Bourne shell (sh(1)), and exit, logout or control-d (if ignoreeof is not set) for the C-shell, csh(1)). Certain interactive commands, such as vi(1), create garbage in the typescript file. The script utility works best with commands that do not manipulate the screen. The results are meant to emulate a hardcopy terminal, not an addressable one. ENVIRONMENT
The following environment variable is utilized by script: SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed. (Most shells set this variable automatically). SEE ALSO
csh(1) (for the history mechanism). HISTORY
The script command appeared in 3.0BSD. BUGS
The script utility places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects. It is not possible to specify a command without also naming the script file because of argument parsing compatibility issues. When running in -k mode, echo cancelling is far from ideal. The slave terminal mode is checked for ECHO mode to check when to avoid manual echo logging. This does not work when in a raw mode where the program being run is doing manual echo. BSD
June 6, 1993 BSD
All times are GMT -4. The time now is 06:23 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy