Server Check Scripts with grep Option

moyousif · 11-27-2008, 05:31 AM

Hi every one,

I have some problems doing daily routines on my Linux servers I need to do the following

Check the disk size
Check memory and cpu utilization.
Check /var/adm/messages for specifics alarms .

I am wounding if anyone can suggest me a script to monitor host performance according the previous points and send me email if specific value In df –k , vmstat

Any suggestions
Am asking the experts 
Regards,
M. Yosuif Alx

Fritz_Monroe · 11-27-2008, 09:18 AM

I'm no scripting expert, so can't just pop out a script for you, but I'll try to give some ideas.

I found a Linux Command Cheatsheet that has a bunch of useful scripts. One is for checking CPU suage. You could put this into a loop and use the cut command to pull out the un-needed bits. Maybe just keep the CPU % and the process name. Direct the output to a file using > to overwrite the contents of that file or >> to append to the file.

Then use the mail command to e-mail it to yourself. That would be something along the lines of

mail -s "subject" address < filename.input

Good luck with creating your script.

One piece of advice is to install an enhanced text editor if you don't already have one. This will color the text in different ways and it makes it easier to see what you are doing.

jstephens84 · 11-27-2008, 10:21 AM

Here is a start.

Code:

df -h >> MorningLog.log // gives you diskspace info
free -m >> MorningLog.log // gives you memory info
vmstat >> MorningLog.log  // gives you swaping information
ps aux | awk '{print $1, " ", $2 " ", $3, " " , $4, " ", $11}' >> MorningLog.log  // gives you all processs running, who owns them, cpu %, mem% and what the command is.

jstephens84 · 11-27-2008, 10:24 AM

then you can also put in

Code:

lpr -P <destination to printer> -# <number> -h [file name]

this will send the MorningLog.log to a printer in your office.

moyousif · 11-27-2008, 10:58 AM

Quote:

Originally Posted by jstephens84

Here is a start.

Code:

df -h >> MorningLog.log // gives you diskspace info
free -m >> MorningLog.log // gives you memory info
vmstat >> MorningLog.log  // gives you swaping information
ps aux | awk '{print $1, " ", $2 " ", $3, " " , $4, " ", $11}' >> MorningLog.log  // gives you all processs running, who owns them, cpu %, mem% and what the command is.

hijstephens84 ,

Thanks for you feed . .
this is so close, but i need to do more , i mean to append to MorningLog.log only if df -h for /var valuse exceeded 80 %.

its was helpfull
Thanks

jstephens84 · 11-27-2008, 11:03 AM

Sounds like you are going to want to use regexp also with df -h to parse out the percentage. maybe. I will tinker around and see what I can come up with.

jstephens84 · 11-27-2008, 11:08 AM

well I was able to get the percentages from df -h but just having problems with my if statement. Some things you will want to research will be how to remove headings from df -h and how to turn the string into an integer.