Sponsored Content
Top Forums Shell Programming and Scripting Searching for a string in a log file with little movement Post 302408016 by redhead on Saturday 27th of March 2010 04:54:10 PM
Old 03-27-2010
Why not monitor the latest time stamp on the logfile, it will tell you when it's last been modyfied, if it differs from last check, then there are some lines that has been written to it, tail them out and search for your string.
ie:
Code:
 ~> ls -l /var/log/messages
-rw-r----- 1 root adm 520646 27 mar 21:41 /var/log/messages
~> date
sat mar 27 21:52:07 CET 2010
~> /etc/init.d/sysklogd restart
Restarting system log daemon....
~> ls -l /var/log/messages
-rw-r----- 1 root adm 520733 27 mar 21:52 /var/log/messages

You can even use some "wc -l" on the file to make sure it's only the latest written lines you're tail'ing from it.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

searching for a string though file system

Is there a way to search an entire file system for the occurance of a string..... other than grep. I have a large directory structure and I'm not certain that grep <string> */*/*/*... is all that effective - especially as I can't be sure of the number of levels to go down without heaps of... (3 Replies)
Discussion started by: peter.herlihy
3 Replies

2. Shell Programming and Scripting

Complicated string searching in a file

Hi folks, Following a part of opmn.xml file: <process-type id="OC4J_RiGHTv_PLATOR81" module-id="OC4J"> <environment> <variable id="LD_LIBRARY_PATH" value="/home/ias/v10.1.2/lib" append="true"/> <variable id="SHLIB_PATH"... (5 Replies)
Discussion started by: nir_s
5 Replies

3. Shell Programming and Scripting

Extracting a string from one file and searching the same string in other files

Hi, Need to extract a string from one file and search the same in other files. Ex: I have file1 of hundred lines with no delimiters not even space. I have 3 more files. I should get 1 to 10 characters say substring from each line of file1 and search that string in rest of the files and get... (1 Reply)
Discussion started by: mohancrr
1 Replies

4. UNIX for Dummies Questions & Answers

searching for a string in a file

I need to search for a specific string in a file and if this string exist I need to replace it with something else. I am not sure how I could do this, using an if statement. (2 Replies)
Discussion started by: ROOZ
2 Replies

5. Shell Programming and Scripting

Searching a string in a file

Hi, I am new to unix shell scripting. I have a requirement. Could anyone help me writing the script for the same? Here goes the requirement: I have a config file let's say temp.config. Here is the data in the config file temp.config : ------------- name=victor age=42 state=texas... (5 Replies)
Discussion started by: badrimohanty
5 Replies

6. Shell Programming and Scripting

searching each file for a string

Hi Guys... I want to search for each file that contains a particular string. e.g find . -print | xargs grep -i string_name Now my issue is the files that I search in are gzipped. Will I be able to find the string, using the above commands, even if the files are gzipped? Please... (2 Replies)
Discussion started by: Phuti
2 Replies

7. Shell Programming and Scripting

Searching for a specific string in a file

Hi I am trying to search for a certain set of patterns within a file, and then perform other commands based on output. testfile contents: password requisite pam_cracklib.so lcredit=-1 ucredit=-1 ocredit=-1 script: D="dcredit=-1" if then echo $D exists else echo $D doesnt... (8 Replies)
Discussion started by: bludhemn
8 Replies

8. Shell Programming and Scripting

Searching a string in a file using perl

Hi I would like to read a file using perl and search for a string (last entry). Then read that into an array and do further grep File content for ex: comp=a,value=30,runtime=12,type=lic comp=d,value=15,runtime=2,type=lic comp=a,value=90,runtime=43,type=lic... (1 Reply)
Discussion started by: vivek_damodaran
1 Replies

9. Shell Programming and Scripting

Searching a string stored in other file

I need to design a script which can do the following: I have two files abc.txt and constant.hmtl abc.txt contains some 5 string that I need to see if they exist in contants.html. Constants.hmtl is a very large file around 800 lines. I want to search all the strings present in file... (8 Replies)
Discussion started by: hemasid
8 Replies

10. Shell Programming and Scripting

Searching a string in a particular file name

Hello, I have a file name like FIRST_DPF_DAILY_CUST_0826152322.txt i need to extract the string after the third "_" underscore upto timestamp ends i.e CUST_0826152322 can anyone help me with the code Thank you! Regards Srikanth Sagi (3 Replies)
Discussion started by: srikanth_sagi
3 Replies
syslog.conf(4)						     Kernel Interfaces Manual						    syslog.conf(4)

NAME
syslog.conf - syslogd configuration file SYNOPSIS
facility.severity destination Where: Is part of the system generating the message, specified in /usr/include/sys/syslog_pri.h. See also the syslogd(8) reference page. The severity level, which can be emerg, alert, crit, err, warning, notice, info, or debug. See /usr/include/sys/syslog_pri.h. The syslogd daemon logs all messages of the specified severity level plus all messages of greater severity. For example, if you specify level err, all messages of levels err, crit, alert, and emerg or panic are logged. A local file pathname to a log file, a host name for remote logging or a list of users. In the latter case the users will receive messages when they are logged in. An asterisk (*) causes a message to be sent to all users who are currently logged in. DESCRIPTION
The /etc/syslog.conf file is a system file that enables you to configure or filter events that are to be logged by syslogd. You can specify more than one facility and its severity level by separating them with semicolons. You can specify more than one facility logs to the same file by separating the facilities with commas, as shown in the EXAMPLES section. The syslogd daemon ignores blank lines and lines that begin with an octothorpe (#). You can specify # as the first character in a line to include comments in the file or to disable an entry. The facility and severity level are separated from the destination by one or more tab characters. If you want the syslogd daemon to use a configuration file other than the default, you must specify the file name with the following com- mand: # syslogd -f config_file Daily Log Files You can specify in the /etc/syslog.conf file that the syslogd daemon create daily log files. To create daily log files, use the following syntax to specify the path name of the message destination: /var/adm/syslog.dated/ { file} The file variable specifies the name of the log file, for example, mail.log or kern.log. If you specify a /var/adm/syslog.dated/file path name destination, each day the syslogd daemon creates a sub-directory under the /var/adm/syslog.dated directory and a log file in the sub-directory, using the following syntax: /var/adm/syslog.dated/ date / file Where: The date variable specifies the day, month, and time that the log file was created. The file variable specifies the name of the log file you previously specified in the /etc/syslog.conf file. The syslogd daemon automatically cre- ates a new date directory every 24 hours and also when you boot the system. The current directory is a link to the latest date directory. To get the latest logs, you only need to reference the /var/adm/syslog.dated/current directory. EXAMPLES
The following is a sample /etc/syslog.conf file: # # syslogd config file # # facilities: kern user mail daemon auth syslog lpr binary # priorities: emerg alert crit err warning notice info debug # kern.debug /var/adm/syslog.dated/kern.log user.debug /var/adm/sys- log.dated/user.log daemon.debug /var/adm/syslog.dated/daemon.log auth.crit;syslog.debug /var/adm/syslog.dated/syslog.log mail,lpr.debug /var/adm/syslog.dated/misc.log msgbuf.err /var/adm/crash.dated/msgbuf.savecore kern.debug /var/adm/messages kern.debug /dev/console *.emerg * FILES
/etc/syslog.conf /etc/syslog.auth - Authorization file for remote logging. /usr/include/sys/syslog_pri.h - Common components of a syslog event log record. RELATED INFORMATION
Commands: /usr/sbin/syslogd(8), /usr/sbin/binlogd(8) System Administration delim off syslog.conf(4)
All times are GMT -4. The time now is 07:57 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy