Shell Programming and Scripting

Hi,

I am logging the output of bdf command to a file called /tmp/bdfoutput in HPUX server. I want a mail to be sent at 11.55 PM everyday and then the file needs to be rolled over as /tmp/bdfoutput.1 , /tmp/bdfoutput.2 ....etc and the new file has to be created.

Please assist in getting the script.

create a cron script that goes off at 23:55 every day that does the following:

1. get the highest numbered /tmp/bdfoutput.# file. I'm sure there are plenty of ways here's one off the top of my head:

Code:

FNUM=$(ls -1 /tmp/bdfoutput.* | sort -t. -k2nr | head -n 1 | cut -f2 -d. )

Note: in the 'ls -1' command that is "one" not "ell" as the option.

Should leave you with just the number in $FNUM

2. use mailx to send out /tmp/bdfoutput as the body of the mail message
to your recipient(s).

and then

Code:

((FNUM+=1))
mv /tmp/bdfoutput /tmp/bdfoutput.${FNUM}

Note2: If you write this as a cron script, make sure to fully qualify the paths to non built-in commands,
and don't have any debugging output in your final version that cron will use.