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cron job email results...

I have a cron job /etc/cron.daily/update and I would like to be email the results. The problem is there are multiple commands within the job. For example:

Code:

#!/bin/sh



LOG=/var/log/updates

echo "Running updates on `date`" > $LOG

urpmi.update updates >> $LOG 2>&1

urpmi --media updates --auto-select --auto >> $LOG 2>&1

This makes my logs nice a pretty and I know I could get this to send me multiple emails, but Im curious if I could get everything (for that day) to be sent to me in 1 email.

Code:

Running updates on Wed Jan 26 13:05:46 CST 2005

examining synthesis file [/var/lib/urpmi/synthesis.hdlist.jpackage.cz]

examining synthesis file [/var/lib/urpmi/synthesis.hdlist.plf.cz]

examining synthesis file [/var/lib/urpmi/synthesis.hdlist.contrib.cz]

retrieving source hdlist (or synthesis) of "updates"...

    ftp://mirror.aca.oakland.edu/pub/lin...info/hdlist.cz

...retrieving done                                                            

examining hdlist file [/var/cache/urpmi/partial/hdlist.updates.cz]

writing list file for medium "updates"

examining synthesis file [/var/lib/urpmi/synthesis.hdlist.main.cz]

performing second pass to compute dependencies



examining hdlist file [/var/lib/urpmi/hdlist.jpackage.cz]

built hdlist synthesis file for medium "jpackage"

examining hdlist file [/var/lib/urpmi/hdlist.plf.cz]

built hdlist synthesis file for medium "plf"

examining hdlist file [/var/lib/urpmi/hdlist.contrib.cz]

built hdlist synthesis file for medium "contrib"

examining hdlist file [/var/lib/urpmi/hdlist.updates.cz]

built hdlist synthesis file for medium "updates"

examining hdlist file [/var/lib/urpmi/hdlist.main.cz]

built hdlist synthesis file for medium "main"

found 0 headers in cache

removing 0 obsolete headers in cache

write config file [/etc/urpmi/urpmi.cfg]



    ftp://mirror.aca.oakland.edu/pub/lin...01mdk.i586.rpm

    ftp://mirror.aca.oakland.edu/pub/lin...01mdk.i586.rpm

    ftp://mirror.aca.oakland.edu/pub/lin...24mdk.i586.rpm

installing /var/cache/urpmi/rpms/xpdf-3.00-7.3.101mdk.i586.rpm /var/cache/urpmi/rpms/libcups2-1.1.21-0.rc1.7.4.101mdk.i586.rpm /var/cache/urpmi/rpms/kernel-source-2.6-2.6.8.1-24mdk.i586.rpm

Preparing...                ##################################################

  1:kernel-source-2.6      ##################################################

  2:xpdf                  ##################################################

  3:libcups2              ##################################################

Since the job appends to the log, I dont know how to receive only 1 email with todays info, not the whole log.

Thank you!
TheGNUbie

At the end of the cron job, do something like this:

Code:

cat $LOG | grep `date` | mail -s "The log from today" your.email@example.com

Where you have `date`, use anything you want to match on.

wont that only return 1 line? (ie.. the date line)

I want to see everything from todays date down.

actually I just notice that its not appending to the log like I had hoped.. so I guess I can just email the whole log to myself.

Quote:

echo "Running updates on `date`" > $LOG

That echoes the contents of `date` to the file. You've pointed out that this overwrites the file. If you didn't want to overwrite the file, you would have used >>

Okay.

Let's expand what I mentioned before.

Quote:

cat $LOG | grep `date` | mail -s "The log from today" your.email@example.com

That expands to:

(We'll use a fake value for $LOG)

cat /var/log/fake.log | grep Wed Jan 26 21:54:32 EST 2005 | mail -s "The log from today" your.email@example.com

Which won't work. I didn't think through my example clearly enough. You'll need to format the date differently.

Something like this:

Quote:

`date '+%m%d%y'`

would produce this: 012605. That might be good enough. If you wanted to use the same format used by apps that print to /var/log/messages (on a FC1 system), you would use:

Quote:

`date '+%b %d %k:%M:%S'`

So, the corrected example would be:

Quote:

cat $LOG | grep "`date '+%b %d'`" | mail -s "The log from today" your.email@example.com

You'll notice that the date command is only using the month and day, as that is what you will want to match on. That will show you the log entries that match the month and day.

If you had left the %k:%M: in there, it would only match on the same hour and minute that the cron script ran on.

Anyway, you see the idea.

Quote:

Originally posted by ryedunn
wont that only return 1 line? (ie.. the date line)

I want to see everything from todays date down.

My flawed example would not have worked at all the way it was quoted. If was was quoted right, it would not have returned the entries you were looking for.

*doh*

I just realized what you were asking. I was somewhere off in left field.

In that case, have your script start off like this:

Code:

#!/bin/sh



LOG="/var/log/updates-`date '+%m%d%y'`.log"

echo "Running updates on `date`" > ${LOG}

urpmi.update updates >> ${LOG} 2>&1

urpmi --media updates --auto-select --auto >> ${LOG} 2>&1

and then at the end of the cron script, have it do this:

Code:

cat ${LOG} | mail -s "My updates-`date '+%m%d%y'`.log file" your.email@example.com

Try that out and let me know how it works. ;)

Instead of redirecting stdout to $LOG, you could tee it to $LOG. So, for example, the line

Code:

urpmi.update updates >> $LOG 2>&1

would be replaced by

Code:

urpmi.update updates 2>&1 | tee -a $LOG