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why the case 2 will happen ? , ' should stop the history substitution ,shouldn't it?
case 1
# echo "123"|sed '/123/!d'
123

case 2
# echo "123
> 456
> 1
> "|sed '/123/!d'
-bash: !d': event...

try this
grep -o "Field[0-9]\+a" ufile

you can reference to camel book,chapter 20 ,it's tell you how to use perl debugger

are you look for this?

awk '/Report for server/{aa=substr($6,2,length($6)-2);print ""}/^(Max\. )?Connections (count|available|in use)/{print aa" "$0}' ufile

yes it works fine, and i perfer to this

$ date -d '1 day ago'
Mon Feb 28 09:39:56 CST 2011
$ date
Tue Mar 1 09:39:58 CST 2011

i think that you should log the time when your rsync command run into your log file ,like

time:
your rsync output
....
time:
your rsync output

====

that will be easy to analysis (use sed...

perl is also powerful!!

cat ufile|perl -p -ne 's/(?:(?<==)PAC)/PT/;'

file 2 is also huge?

---------- Post updated at 11:32 AM ---------- Previous update was at 11:23 AM ----------



file1 is big,so here O array is really a big array

I prefer to use grep

grep -o "[+-]\?[0-9]\+\.[0-9]\+s" ufile

I think that you should send rsync output into a temporary file ,and cron another script to check the temporary file , mail the result to your box,then empty the file