RegEx to find error but exclude no error

[remus]

Hi all,

I"m trying to put together a error check in my daily file backup bash script.

Here's my error check section

Code: [Select]

# Check the log file for errors
DateTime=$(date +"%d/%m/%Y %H:%M")
ErrorCheck=$(grep -ciE "fail|can't" $LOGFILE)
if [ $ErrorCheck -gt 0 ]
then
 EmailSubject=$ErrorCheck"(s) Errors Detected in DB Backup $DateTime"
else
 EmailSubject="DSS DB Backup $DateTime"
fi

I've noticed that this will specifiy an error in my email subject if it finds "no error" of course.
Can someone suggest a RegEx that will only find error if its not preceeded by "no " ?

Thanks

[curaga]

grep -vi "no error" $LOGFILE | grep -ciE ...

[remus]

thanks for the input curaga, its still finding my excluded string though.

Here's my update

Code: [Select]

# Check the log file for errors
DateTime=$(date +"%d/%m/%Y %H:%M")
ErrorCheck=$(grep -vi "No errors" $LOGFILE | grep -ciE "error|fail|can't" $LOGFILE)
if [ $ErrorCheck -gt 0 ]
then
 EmailSubject=$ErrorCheck" Errors Detected in DSS DB Backup $DateTime"
else
 EmailSubject="DSS DB Backup $DateTime"
fi

Did I make a simple syntax error maybe ?

[curaga]

Yes, remove the second $LOGFILE. The second grep should grep the pipe.

[remus]

That nailed it !
Thanks curaga