UNIX for Dummies Questions & Answers

Hi Experts,

Im a new bee for scripting,

I would ned to do the following via linux shell scripting, I have an application which throws a log file, on each action of a particular work with the application, as sson as the action is done, the log file would vanish or stops updating there, the action apparently invokes another application related.

So now my task would be to see the logfile that is generated each time.

please chk this

My script would have to regularly check the following directory (which will vary with the system name)

/usr/fl/log/*-fsm-server-*/

for a file called

console.txt

That file only exists for as long as the process is running (so your
script will have to poll that directory regularly). It contains
pathnames to the footage being copied.


here the * represents the numbers on each instance,

So i need to poll this directory and check for the latest log file, and grep the essential info............



How im not confusing...............if possible help me out............i shall explain better if needed.

Is this homework/classroom stuff or is that an instruction for us to write your script? Either would not be nice

Nevertheless, something to start with:

- set it up as a cronjob
- "ls -latr" will give you the latest file in a directory
- if you have to be recursively, use -R or use find, maybe in combination with ls or something, whatever you need
- to check if a file is there or not, use something like

Code:

...
if [[ ! -e /my/dir/file.txt ]]; then
    echo "The file is not there!"| mail -s "alarm" you@domain.org
fi
...

GL

thanks,

as you said, yes i can cron, but my tricky thing is to know the directory as well i.e

/usr/fl/log/*....something...*/console.txt

here both the * are the variables that may change any time nather created when the other application is invoked.

Im good at troubleshooting, but new to scripting, so i think im explaining in a better way.

so the task would also involve finding the newly created directory on a periodic basis and the browse the console.txt file, then grep the particular line that has been there and then touch that to the file.

for fine tuning i think i should try to add the time when the directory was created in the new log file, so that i get a proper history after a due course of time..............


thanks in advance pals............. see u soon