05-28-2008
You could use a combination of comm and grep.
The logic in your script would look something like this:
- save a copy of your log file to logfile1
- wait a few minutes and save a copy of your logfile to logfile2
- comm -13 logfile1 logfile2 | grep the line your looking for
- exit if grep returns something, if it doesn't wait a few minutes.
- copy logfile2 to logfile1 and copy the new updated logfile to logfile2
- run your comm , grep command again and repeat your checks
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi
Currently I can grep a log file with the following command:
$results = `grep -A 2 '^$date.$time.*' $log`;
and the following arguments:
$date = 2007/04/25
$time = 16:07
Log example:
2007/04/25 16:07:12.145701
2007/05/25 14:07:12.145701
2007/05/25 17:07:12.145701
2007/06/25... (37 Replies)
Discussion started by: Epiphone
37 Replies
2. Shell Programming and Scripting
Hi
Im running a backup scriptwhich creates a log file
how do grep for the string in the logfile so the backup script can continue to next stage otherwise it will exit
i.e
12:32:53 INF - Client completed sending data for backup
12:33:02 INF - Backup by root on client lonbob04bak using... (4 Replies)
Discussion started by: eb222
4 Replies
3. UNIX for Advanced & Expert Users
I want to grep a portion of the log file. grepping a particular pattern and including 10 lines before that and after that occurence.
grep -n "SomeString Pattern" filename
10 lines before this occurence and 10 lines after that.
Please help. Need the simple script not in awk or sed. (9 Replies)
Discussion started by: sainipardeep
9 Replies
4. Shell Programming and Scripting
Hello everyone. I have a log file that contains multiple domains:
www.thisdomain.com
agent.thisdomain.com
that.thisdomain.com
I need to copy all of the lines that contain "www.thisdomain.com" from the log and output them into a new file. I've tried everything with little luck. Please help... (3 Replies)
Discussion started by: aberli
3 Replies
5. Shell Programming and Scripting
Hi,
I would like to execute a daily grep like:
grep 2010-09-06 statistics.log|grep API > /var/tmp/stat20100906_sp.txt
On date e.g. 2010-09-07 run a grep on yesterday's date, from the result grep the word "API" put all in /var/tmp
Would like to have a script configured in the crontab, running... (4 Replies)
Discussion started by: pointer
4 Replies
6. Shell Programming and Scripting
Hello,
I am new to shell scripting. I need to write a shell script where i can grep the name of file ie. .sh file and log file from crontab -l.
#51 18 * * * /home/oracle/refresh/refresh_ug634.sh > /home/oracle/refresh/refresh_ug634.sh.log 2>&1
#40 17 * * * /home/oracle/refresh/refresh_ux634.sh... (1 Reply)
Discussion started by: guptra
1 Replies
7. Shell Programming and Scripting
logfile="/var/tmp.log"
output=$(grep "ERROR" $logfile)
if
then
echo "exceptions logged , please check /var/tmp.log for more details" |\
mail -s "exceptions logged , please check /var/tmp.log on for more details" $DL
else
echo "not found"
fi
Somehow its not working as... (5 Replies)
Discussion started by: ajothi
5 Replies
8. Shell Programming and Scripting
Hello,
I want to grep a log ("server.log") for words in a separate file ("white-list.txt") and generate a separate log file containing each line that uses a word from the "white-list.txt" file.
Putting that in bullet points:
Search through "server.log" for lines that contain any word... (15 Replies)
Discussion started by: nbsparks
15 Replies
9. Shell Programming and Scripting
I have a log file which have a date and time at the start of every line.
I need to search the log file starting from a specific time to the end of file.
For example:
Starting point: July 29 2018 21:00:00
End point : end of file
My concern is what if the pattern of `July 29 2018 21:00:00`... (3 Replies)
Discussion started by: erin00
3 Replies
10. UNIX for Beginners Questions & Answers
Hi
Can't see what I am doing wrong here:
Trying to view a log file and grep for WARNING but keep getting the following error:
$ view datasource.log | grep WARN
Vim: Warning: Output is not to a terminal
WARNING: JMX not enabled. To enable, specify rmi-client-port and rmi-registry-port... (2 Replies)
Discussion started by: simpsa27
2 Replies
LEARN ABOUT SUNOS
gzegrep
GZGREP(1) General Commands Manual GZGREP(1)
NAME
gzgrep, gzegrep, gzfgrep - search possibly compressed files for a regular expression
SYNOPSIS
gzgrep [ grep_options ] [ -e ] pattern filename...
DESCRIPTION
gzgrep is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep. If no file is speci-
fied, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and
fed to grep.
If gzgrep is invoked as gzegrep or gzfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, gzgrep
uses it as the grep program to be invoked. For example:
for sh: GREP=fgrep gzgrep string files
for csh: (setenv GREP fgrep; gzgrep string files)
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO
grep(1), egrep(1), fgrep(1), gzdiff(1), gzmore(1), gznew(1), gzforce(1), gzip(1), gzexe(1)
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWgzip |
+--------------------+-----------------+
|Interface Stability | External |
+--------------------+-----------------+
NOTES
Source for gzip is available in the SUNWgzipS package.
GZGREP(1)