FIX: deployment scripts

deploy.sh

 #source
 if [ -z $1 ] || ![ -d $1 ]
 then
-  s="~/grade-rating/"
+  s=~/grade-rating/
 else
   s=$1
 fi
@@ -9,16 +9,16 @@ fi
 #destination
 if [ -z $2 ] || ![ -d $2 ]
 then
-  d="~/public_html/"
+  d=~/public_html/
 else  
   d=$2
 fi
 
 #shopt -s dotglob
-cp -rp $s"web/*" $d
+cp -rp ${s}web/* $d
 mysqladmin -u mmcs_rating -pPefnesdy drop mmcs_rating
 mysqladmin -u mmcs_rating -pPefnesdy create mmcs_rating
-mysql -u mmcs_rating -pPefnesdy mmcs_rating < $s"db/Structure.sql"
-mysql -u mmcs_rating -pPefnesdy mmcs_rating < $s"db/StoredProcedures.sql"
-mysql -u mmcs_rating -pPefnesdy mmcs_rating < $s"db/Sample.sql"
+mysql -u mmcs_rating -pPefnesdy mmcs_rating < ${s}db/Structure.sql
+mysql -u mmcs_rating -pPefnesdy mmcs_rating < ${s}db/StoredProcedures.sql
+mysql -u mmcs_rating -pPefnesdy mmcs_rating < ${s}db/Sample.sql