Shell Programming and Scripting

=<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>bytesDown</key>
	<integer>3221225472</integer>
	<key>bytesUp</key>
	<integer>736779840</integer>
	<key>connectionType</key>
	<integer>1</integer>
	<key>downloadLimit</key>
	<real>3</real>
	<key>downloadLimitIncludesUploads</key>
	<false/>
	<key>monthStartDay</key>
	<integer>0</integer>
	<key>theDayToday</key>
	<string>171012</string>
	<key>todaysBytesDown</key>
	<integer>654514353</integer>
	<key>todaysBytesUp</key>
	<integer>47922291</integer>
</dict>
</plist>

if [[ $(awk -F "[<>]" '/bytesDown/{getline;if($3 > 3221225472){print $3}}' file) ]]
then
#sendmail - write ssend mail function here
fi

a=$(awk -F"[<>]" '/bytesDown/{a=1}a&&/integer/{if($3>3221225472){print "High";exit}}' plist.txt)
if [ "$a" = "High" ]
then
          echo "Usage is High" | mailx -s "Usage is high" abcd@xyz.com
fi

size_GB=`awk -F "[<>]" '/bytesDown/{getline; { printf("%.1f",$3/1024/1024/1024); }} ' plist.txt`
threshold=3.0

if [[ $size_GB > $threshold ]]
then
        # Send Email
else
        :
fi