02-13-2012
How to read log files from last read
Hi
i am looking a way to look at a log file(log.txt) from the last time I've read it.
However after some days the main log file(log.txt) is rename to (log.txt.1).
So now i will have two log files as below.
log.txt.1
log.txt
Now, i have to read the log from the point where i have left the last read.
I can do this by storing the last line no# read in seperate file and and start reading the log file from that line, however if the log files is renamed(backed up), this logic will not work.
Any suggesstion.
Last edited by sumitsks; 02-13-2012 at 06:06 AM..
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi all,
I have to generate some report from shell script .We have stacktrace log file which generate hourly basis.
So now my q is that how this shell script will read all stacktrace log file for particlular day and parse accordingly desire output.
Any help or suggestion as i am newbie with... (1 Reply)
Discussion started by: esungoe
1 Replies
2. Shell Programming and Scripting
OS : Linux 2.6.9-67 - Red Hat Enterprise Linux ES release 4
Looking for a script that reads the following log files that gets generated everynight between 2 - 5am
Master_App_20090717.log
Master_App1_20090717.log
Master_App2_20090717.log
Master_App3_20090717.log... (2 Replies)
Discussion started by: aavam
2 Replies
3. UNIX for Advanced & Expert Users
Hi the following c-code utilizing the 'read()' man 2 read method cant read in files larger that 2gig.
Hi I've found a strange problem on ubuntu64bit, that limits the data you are allowed to allocate on a 64bit platform using the c function 'read()'
The following program wont allow to allocate... (14 Replies)
Discussion started by: monkeyking
14 Replies
4. Shell Programming and Scripting
Hi Guys,
Happy New Year to you all!
I have a requirement to read an embedded new-line using KSH's read builtin.
Here is what I am trying to do:
run_sql "select guestid, address, email from guest" | while read id addr email
do
## Biz logic goes here
done
I can take care of any... (6 Replies)
Discussion started by: a_programmer
6 Replies
5. UNIX for Dummies Questions & Answers
Hello All,
i am a newbie and need some help when reading a csv file in a bourne shell script. I want to read 10 lines, then wait for a minute and then do a reading of another 10 lines and so on in the same way. I want to do this till the end of file.
Any inputs are appreciated
... (3 Replies)
Discussion started by: victor.s
3 Replies
6. UNIX for Dummies Questions & Answers
Can some one please help me know how exactly to understand logs in sendmail 8.14.5. I am pretty new to sendmail.
I am running rhel6 on my system and i installed sendmail on it. Its just a test enivornment and i am sending and receiving emails on my localshot only.
Jun 13 18:32:38 serv1... (0 Replies)
Discussion started by: Rohit Bhanot
0 Replies
7. Shell Programming and Scripting
Hi.
How can I create a history function? (By "read" command or so)
&
How can I configure a read command so that the arrow keys are not displayed so funny? (^[[A)
Thanks in advance. (4 Replies)
Discussion started by: sinnlosername
4 Replies
8. UNIX for Dummies Questions & Answers
I have several problems with my problems: I hope you can help me.
1) the If else statement I am getting an error message. My syntax must be incorrect because the entire statement is throwing an error.
For example in filew.log if these items don't exist Memsize, SASFoundation and also if... (0 Replies)
Discussion started by: dellanicholson
0 Replies
9. Shell Programming and Scripting
Hi Experts,
I have a situation where I need to write a shell script to continuously monitor a log directory with multiple log files and perform following:
1. Read the latest log file continuously and grep "Success" OR "Failure"
2. As it capture either Success or Failure, it has to perform a... (1 Reply)
Discussion started by: rish_max
1 Replies
LEARN ABOUT CENTOS
doveadm-log
DOVEADM-LOG(1) Dovecot DOVEADM-LOG(1)
NAME
doveadm-log - Locate, test or reopen Dovecot's log files
SYNOPSIS
doveadm [-Dv] log errors [-s min_timestamp]
doveadm [-Dv] log find [directory]
doveadm [-Dv] log reopen
doveadm [-Dv] log test
DESCRIPTION
The doveadm log commands are used to locate and reopen the log files of dovecot(1). It's also possible to test the configured targets of
the *log_path settings.
OPTIONS
Global doveadm(1) options:
-D Enables verbosity and debug messages.
-v Enables verbosity, including progress counter.
COMMANDS
log errors
doveadm log errors [-s min_timestamp]
The log errors command is used to show the last - up to 1,000 - errors and warnings. If no output is generated, no errors have occurred
since the last start.
-s min_timestamp
An integer value, representing seconds since the epoch - also known as Unix timestamp. When a min_timestamp was given, doveadm(1)
will only show errors occurred since that point in time.
log find
doveadm log find [directory]
The log find command is used to show the location of the log files, to which dovecot(1) sends its log messages. If dovecot(1) logs its
messages through syslogd(8) and doveadm(1) could not find any log files, you can specify the directory where your syslogd writes its log
files.
log reopen
doveadm log reopen
This command causes doveadm to reopen all log files, configured in the log_path, info_log_path and debug_log_path settings. These settings
are configured in /etc/dovecot/conf.d/10-logging.conf.
This is for example useful after manually rotating the log files.
log test
doveadm log test
This command causes doveadm to write the message "This is Dovecot's priority log (timestamp)" to the configured log files. The used prior-
ities are: debug, info, warning, error and fatal.
EXAMPLE
This example shows how to locate the log files used by dovecot(1).
doveadm log find
Looking for log files from /var/log
Debug: /var/log/dovecot.debug
Info: /var/log/mail.log
Warning: /var/log/mail.log
Error: /var/log/mail.log
Fatal: /var/log/mail.log
REPORTING BUGS
Report bugs, including doveconf -n output, to the Dovecot Mailing List <dovecot@dovecot.org>. Information about reporting bugs is avail-
able at: http://dovecot.org/bugreport.html
SEE ALSO
doveadm(1)
Dovecot v2.2 2013-11-24 DOVEADM-LOG(1)