Check a website for changes

Usage: diffweb.sh https://domain.tld

diffweb.sh

@@ -1,5 +1,4 @@
 #!/bin/bash
-
 # diffweb - Checks a website for changes
 # Usage: diffweb https://domain.tld
 # Author: Justin Oros
@@ -8,6 +7,7 @@
 FILE1=/tmp/file1
 FILE2=/tmp/file2
 
+# check to see if any input was given
 if [ -z $1 ]
 then
 	echo "Usage: diffweb https://domain.tld"
@@ -21,7 +21,7 @@ then    # if file1 exists
 	# store to file2
 	curl -s $1 > $FILE2
 else    # if file1 does not exist
-	# notify user of first run
+	# notify user this is the first run
 	echo "diffweb has not run before for $1"
 	# get website data
 	# store to file1
@@ -31,14 +31,15 @@ fi
 # check to see if file2 exists
 if test -f $FILE2
 then
-			# compare files
+	# compare files
-			if cmp -s $FILE1 $FILE2
+	if cmp -s $FILE1 $FILE2
-			then
+	then
-						echo "$1 has not changed."
+		# notify user website has not changed
-			else
+		echo "$1 has not changed."
-						# notify user website has changed
+	else
-						echo "$1 has been updated!"
+		# notify user website has changed
-  					# clone file2 to file1
+		echo "$1 has been updated!"
-						cat $FILE2 > $FILE1
+  		# clone file2 to file1
-			fi
+		cat $FILE2 > $FILE1
+	fi
 fi