Shell Programming and Scripting

grep "facebook.com | grep "login"

if [ -z "$grepcommand" ];then
		/usr/bin/gzcat $logfile >> ~/$filetowriteWW
		else
		/usr/bin/gzcat $logfile | $grepcommand >> ~/$filetowriteWW
	fi

CHOOSEGREP()
{
until (test "$CHECK" = "Y" || test "$CHECK" = "y")
        do
        echo -n "Enter any grep queries you want to search for, leave BLANK if you do not want to filter anything"
		echo "If you search for an IP address and it does not have 3 digits in the last octet grep with a space "
		echo "after the last octect"
		echo "For example: grep \"10.144.123.22 \" |grep \"facebook.com\" | grep -v \"none\"  "
		read grepcommand
		echo "You have choose '$grepcommand' (between the single quotes), is this ok? [y/n]"		
        read CHECK
done
CHECK=""

blah blah other stuff
+ read grepcommand
grep \"facebook.com\" 
+ echo 'You have choose '\''grep "facebook.com"'\'' (between the single quotes), is this ok? [y/n]'
You have choose 'grep "facebook.com"' (between the single quotes), is this ok? [y/n]

+ '[' -z 'grep "facebook.com"' ']'
+ /usr/bin/gzcat /EMEA/fwadmcdc05-ezone.uk.db.com/testproxy/access1004122141.merged-00.15.17.86.ad.70.log.gz
+ grep '"facebook.com"'