I'm sure it is a good start at this, but what actually goes wrong? Does it fail to send mail, fail to detect the line, or something else?
If the log file is updated a lot, you are also firing up multiple sub-process for each line written to it. Could you do something more economical like:-
Code:
pattern="WRONG CRITERIA FOUND"
tail -fn0 logfile | \
grep "$pattern" | \
while read line
do
.... do something ...
done
In bash you could maybe try the neater:-
Code:
pattern="WRONG CRITERIA FOUND"
while read line
do
... do something ...
done < <(tail -fn0 logilfe | grep "$pattern")
Did you consider the -F (upper case!) option to tail to deal with the log file rotation?
And, your code snippet - although not too logical nor efficient - doesn't seem "wrong". So please answer rbatte1's question - WHAT doesn't do what you want? Did you try the proposals in the thread from which you borrowed your code?
I have a objective of Sending email if latest file in a directory(excluding files of sub-dirs) is older than 2 hours.
eg : ls -ltr
drwx--x--x 2 abcde abc 256 2017-02-07 20:10 Mail
-rw-rw-r-- 1 abcde abc 1170 2017-02-24 17:30 test
-rw-rw-r-- 1 abcde abc 356 2017-03-09 18:00 xyz.csv... (3 Replies)
Hi ,
I have a file where i have modifed certain things compared to original file . The difference of the original file and modified file is as follows.
# diff mir_lex.c.modified mir_lex.c.orig
3209c3209
< if(yy_current_buffer -> yy_is_our_buffer == 0) {
---
>... (5 Replies)
Hello,
I need to write one script which should search particular pattern like ABCD in log file name hello.txt only in current date logs.
in current directory i have so many past date logs but grep should be applied on current date logs.
on daily basis current date logs are in number 30 and... (2 Replies)
I need assistance with following requirement, I am new to Unix.
I want to do the following task but stuck with file creation date(sysdate)
Following is the requirement
I need to create a script that will read the abc/xyz/klm folder and look for *.err files for that day’s date and then send an... (4 Replies)
Hi all,
Thanks in Advance!!
I dont know how to start to write script for this process, my requirement is if any user logs into server automatically Admin get mail alert. how is this possible? any one guide me to complete this process. (1 Reply)
Hi All
I am writing a script which will select the latest logs (which are generated every night via a script) among old one and new. Script generates set of 3 logs each time it runs. Example :
log-WedJun082011_bkt1.log
log-WedJun082011_bkt2.log
log-WedJun082011_bkt3.log
I have... (1 Reply)
I have requirement to prepare script which will grep for latest outofmemory message from the logs. I have used following command to grep the string from the logs,this script is not effective when logs are not getting updated as it will grep for old message.
f=catalina.out
var=`tail -10 $f |... (17 Replies)
Hello All,
I am using the below code to grep particular word from file and then emailing it through mail command. the problem is this that when i run the script so it stops and ask me for the mail body then it asks for cc: and then runs.
I dont want to give body and cc: address, i just want... (1 Reply)
Hi,
I am trying to write a script which would go search and get the info from the logs based on yesterday timestamp and write yesterday logs in new file. The log file format is as follows:
""""""""""""""""""""""""""... (3 Replies)
