Fixed bug - script now exits with code 3 if district/region is not found

CHANGELOG

@@ -1,4 +1,20 @@
 2014-01-03
 Version 0.1 - First release of the plugin
 
+2014-01-04
+Version 0.2 - Fixed two bugs, whereas one important
+		1. In case there more than one wheater alert for the specified
+		   region, the script would bug out. Fixed by adding 'head -n1'
+		   so that it always only shows the first warning issued.
+		2. In case there were swedish characters (åäö) in the warning
+		   message they would output as their HTML-equivalent. Fixed
+		   with another sed substitue command.
 
+2014-01-09
+Version 0.3 - SMHI has changed österlen to Österlen in the text. Updated this
+	      in the hardcoded region/district names.
+
+2014-01-09
+Version 0.4 - Fixed an important bug. If the district/region did not exist
+	      the script exited with a status 0 (OK). This should be status 3
+	      (Unknown). This is now fixed.

check_smhi.sh

@@ -21,14 +21,14 @@
 ################################################################################
 
 # check_smhi
-Version="0.1"
+Version="0.4"
 Author="Jack-Benny Persson (jack-benny@cyberinfo.se)"
 
 # Binaries
 Which="/usr/bin/which"
 # Binaries entered in the list will be avalible to the script as variables with
 # the first letter uppercase
-Binaries=(sed awk egrep printf curl)
+Binaries=(sed awk egrep printf curl head)
 
 # Variables
 District=""
@@ -59,8 +59,8 @@ AvailDistricts=(
 "Jämtlands län, Jämtlandsfjällen"
 "Västerbottens län, södra Lapplandsfjällen"
 "Norrbottens län, norra Lapplandsfjällen"
-"Skåne län utom österlen"
-"Skåne län, österlen"
+"Skåne län utom Österlen"
+"Skåne län, Österlen"
 "Blekinge län"
 "Hallands län"
 "Kronobergs län, västra delen"
@@ -113,7 +113,7 @@ print_help()
 	Options:
 	-D
 	   District to check for wheather alerts.
-	   NOTE: Districts must be quoted, such as "Skåne län utom österlen"
+	   NOTE: Districts must be quoted, such as "Skåne län utom Österlen"
 	-P
 	   Print a list with all the avaliable districts.
 	-h
@@ -145,7 +145,7 @@ if [ $# -eq 0 ]; then
 	exit $State_unknown
 
 elif [ $# -ge 1 ]; then
-	echo "$1" | egrep -q "\-."
+	echo "$1" | $Egrep -q "\-."
 	if [ $? -ne 0 ]; then
 		echo "$0 requires an option"
 		print_help
@@ -184,7 +184,7 @@ Index=0
 Match=0
 
 while [ $Index -lt $Tot ]; do
-	echo ${AvailDistricts[$Index]} | egrep -x "$District" &> /dev/null
+	echo ${AvailDistricts[$Index]} | $Egrep -x "$District" &> /dev/null
 	if [ $? -eq 0 ]; then
 		Match=1
 		break
@@ -195,16 +195,17 @@ done
 if [ $Match -eq 0 ]; then
 	echo "District $District does not exist"
 	print_help
+	exit $State_unknown
 fi
 
 
 ### Main ###
 
 # Fetch the warning page
-Data=`curl -s http://www.smhi.se/vadret/vadret-i-sverige/Varningar/varning_tabell_n1_sv.htm`
+Data=`$Curl -s http://www.smhi.se/vadret/vadret-i-sverige/Varningar/varning_tabell_n1_sv.htm`
 
 # First we must replace all åäö with their HTML equivalent
-HtmlDist=`echo $District | sed '{
+HtmlDist=`echo $District | $Sed '{
 s/å/\&aring\;/g
 s/Å/\&Aring\;/g
 s/ä/\&auml\;/g
@@ -214,17 +215,24 @@ s/Ö/\&Ouml\;/g
 }'`
 
 # Get the line number for the current district in the HTML-file and add one line to it
-LineNr=`echo "$Data" | sed -n "/$HtmlDist/="`
+LineNr=`echo "$Data" | $Sed -n "/$HtmlDist/=" | $Head -n1`
 ((LineNr++))
 
 # Read the warning message (for example kuling, orkan, åska)
-WarnMsg=`echo "$Data" | sed -n "${LineNr}p" | egrep -o "Varning klass [0-3] .*" | \
-sed 's/\(.*\).........../\1/' | \
-awk '{print substr($0, index($0,$4))}'` 
+WarnMsg=`echo "$Data" | $Sed -n "${LineNr}p" | $Egrep -o "Varning klass [0-3] .*" | \
+$Sed 's/\(.*\).........../\1/' | \
+$Awk '{print substr($0, index($0,$4))}' | $Sed '{
+s/\&aring\;/å/g
+s/\&Aring\;/Å/g
+s/\&auml\;/ä/g
+s/\&Auml\;/Å/g
+s/\&ouml\;/ö/g
+s/\&Ouml\;/Ö/g
+}'` 
 
 # Get the current warning class (1, 2 and 3)
-Class=`echo "$Data" | sed -n "${LineNr}p" | egrep -o "Varning klass [0-3]" \
-| awk '{ print $3 }'`
+Class=`echo "$Data" | $Sed -n "${LineNr}p" | $Egrep -o "Varning klass [0-3]" \
+| $Awk '{ print $3 }'`
 
 # Chech the current warning class issued for the district
 if [ -z $Class ]; then