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Shell Programming and Scripting
Finding errors in log file only in last 10 minutes
Post 302554495 by paul_vf on Monday 12th of September 2011 08:43:31 AM
09-12-2011
Hi,
This is good, and does do what I'm after, thanks very much
However, I was just wondering, how would I change it to print *all* the errors that have happened in the last 10 minutes? The above (if I understand it correctly) will just return the most recent line which is true. (This is fine though, as it will work for my alerting - it'd just be also handy if I knew how many times this error has occurred in the last 10 mins).
Thanks again,
Paul B
---------- Post updated at 01:43 PM ---------- Previous update was at 01:35 PM ----------
Sorry, I think I'm being stupid, that is already what this does, I just appeared to run it on a log file that only had one error in the last 10 minutes...
Sorry!
Thanks again for the help.
Paul B
This is good, and does do what I'm after, thanks very much
However, I was just wondering, how would I change it to print *all* the errors that have happened in the last 10 minutes? The above (if I understand it correctly) will just return the most recent line which is true. (This is fine though, as it will work for my alerting - it'd just be also handy if I knew how many times this error has occurred in the last 10 mins).
Thanks again,
Paul B
---------- Post updated at 01:43 PM ---------- Previous update was at 01:35 PM ----------
Sorry, I think I'm being stupid, that is already what this does, I just appeared to run it on a log file that only had one error in the last 10 minutes...
Sorry!
Thanks again for the help.
Paul B
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LEARN ABOUT OSX
sa1
sa1(8) BSD System Manager's Manual sa1(8) NAME
sa1 -- Generate a system activity daily data file. SYNOPSIS
/usr/lib/sa/sa1 [t n] DESCRIPTION
The sa1 command is a shell script used to invoke the system activity data collector, sadc. The binary sample data is collected at intervals t seconds apart, in a loop n times. The binary sample data is written to the standard daily data file, /var/log/sa/sadd where the dd repre- sents the current day of the month. sa1 is intended to be started by cron. EXAMPLE CRON ENTRY
# Starting at 8am collect system activity records # every 20 minutes for 12 hours # 20 minutes = 1200 seconds # 12 hours with 3 samples each hour = 36 loops 0 8 * * 1-5 /usr/lib/sa/sa1 1200 36 # After the 12 hour period, # collect a system activity report 30 20 * * 1-5 /usr/lib/sa/sa2 -A FILES
/var/log/sa/sadd Default daily activity file that holds the binary sampling data. dd are digits that represent the day of the month. SEE ALSO
crontab(1), fs_usage(1), netstat(1), sar(1), sc_usage(1), top(1), vm_stat(1), crontab(5), iostat(8), sa2(8), sadc(8) Mac OS X Jul 25 2003 Mac OS X