Hi there,
I have an application runnig on HP_UX which logs critical mesages to a log file.
What I would like to do is tail the log file and report on new messages. Easy....I here you say.
The log file is continuing to be written to and the check scritp will be executed from cron. I was... (2 Replies)
hi Gurus,
Need to pick your brains on this minor script project.
I would like to continuously monitor a log file with sample log messages as below, and if PSOldGen percentage is either 99% or 100% for consecutively 10 times, alert someone.
{Heap before gc invocations=46516:
PSYoungGen ... (6 Replies)
Hi,
I ned to monitor the tomcat log file called "catalina.out" for "OutOfMemory" ,"java.sql.SQLException" and "Error" error.
the script should monitor this file (catalina.out) and send us the mail as soon as it finds the string "Out of memory" or "java.sql.SQLException" or "Error" in the... (2 Replies)
hi,
I would like to monitor a log file, which rolls over, everytime a server is restarted.
I would like to grep for a string, and to be more efficient i'd like to grep only newly appended data. so something like a 'tail -f' would do, however, as the log rolls over i think a 'tail -F' is... (2 Replies)
Below script perfectly works, giving below mail output. BUT, I want to make the script mail only if there are any D-Defined/T-Transition/B-Broken State WPARs and also to copy the output generated during monitoring to a temporary log file, which gets cleaned up every week. Need suggestions.
... (4 Replies)
Hi,
I need to get a script working to monitor a log file and throw an alert via mailx as soon as a particular error is encountered.
I do not want repeatative email notifications of same error so simply cat logfile and grepping the error would not work.
Here is what i planned but it seems... (2 Replies)
Hello,
I have been working on script which need to generate an alert based upon live logs. If string is found then an alert mail must triggered.
tail -n -0 -F works fine to redirect the each latest line from live logs file to grep a pattern for matching but it seems to be not working on... (7 Replies)
Hi,
Iam new to unix , plz help me to write below script.
I need to write a script for Monitoring log file when any error occurs it has to send a mail to specified users and it should be always pick latest error not the existing one and the script should be able to send mail all errors (more... (1 Reply)
I am writing a script to kick off a process to gather logs on multiple nodes in parallel using "&". These processes create individual log files. Which I would like to filter and convert in CSV format after they are complete. I am facing following issues:
1. Monitor all Processes parallelly.... (5 Replies)
Hi
I have written below log monitoring script to egrep multiple words and redirect the output to a text file and its working fine but I want to add some more below given functionality to it, which is very advance and im not very good in it, so please help if you can :)
I am egrepping all the... (1 Reply)
Discussion started by: scazed
1 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS --debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.16.3 2010-06-11 SHELL-QUOTE(1)