Grep usage in unix, cannot identify the lower/upper case

I want my shell can only find out the pattern in the quote, but the result also returned something like "MSGxxxxx"

Here is my script:

if egrep -e 'Msg|duplicate|deadlock|status = -|terminated due to disconnect' MYFILE.log
 then
    echo "I found something in your RAW data."    
  else
    echo "Nothing found!"
fi

Solution

Use the -w flag in order to select only those lines containing matches that form whole words.

if egrep -w -e 'Msg|duplicate|deadlock|status = -|terminated due to disconnect' file
then
    echo "I found something in your RAW data."    
else
    echo "Nothing found!"
fi

Alternatively, use a word boundary \b as shown below:

if egrep -e '\bMsg\b|duplicate|deadlock|status = -|terminated due to disconnect' file
then
    echo "I found something in your RAW data."    
else
    echo "Nothing found!"
fi