diff --git a/install.php b/install.php
index a5a1d27..afbcba0 100755
--- a/install.php
+++ b/install.php
@@ -3,26 +3,26 @@
 <?php
 
 print "Updating packages and compiling assets".PHP_EOL;
-`COMPOSE_ALLOW_SUPERUSER=1 composer update`;
-//`symfony console asset-map:compile`;
+shell_exec("COMPOSE_ALLOW_SUPERUSER=1 composer update");
+//`symfony console asset-map:compile");
 
 print "Creating database schema".PHP_EOL;
-`symfony console doctrine:database:create`;
+shell_exec("symfony console doctrine:database:create");
 
 print "Updating migrations and setting permissions for data folder".PHP_EOL;
-`symfony console doctrine:migrations:migrate --no-interaction`;
+shell_exec("symfony console doctrine:migrations:migrate --no-interaction");
 
-`chown -R www-data:www-data /data`;
+shell_exec("chown -R www-data:www-data /data");
 
 // import reference material
 
 print "Importing Bible and Eccumenical Creeds".PHP_EOL;
-`symfony console app:ingest-bible /var/www/html/references/esv-bible`;
-`symfony console app:import-ref /var/www/html/references/creeds/Apostles 'Apostles Creed' creed apc`;
-`symfony console app:import-ref /var/www/html/references/creeds/Athanasian 'Athanasian Creed' creed ath`;
-`symfony console app:import-ref /var/www/html/references/creeds/Chalcedon 'Definition of Chalcedon' creed dc`;
-`symfony console app:import-ref /var/www/html/references/creeds/French 'French Confession' creed fc`;
-`symfony console app:import-ref /var/www/html/references/creeds/Nicene 'Nicene Creed' creed nc`;
+shell_exec("symfony console app:ingest-bible /var/www/html/references/esv-bible");
+shell_exec("symfony console app:import-ref /var/www/html/references/creeds/Apostles 'Apostles Creed' creed apc");
+shell_exec("symfony console app:import-ref /var/www/html/references/creeds/Athanasian 'Athanasian Creed' creed ath");
+shell_exec("symfony console app:import-ref /var/www/html/references/creeds/Chalcedon 'Definition of Chalcedon' creed dc");
+shell_exec("symfony console app:import-ref /var/www/html/references/creeds/French 'French Confession' creed fc");
+shell_exec("symfony console app:import-ref /var/www/html/references/creeds/Nicene 'Nicene Creed' creed nc");
 
 $dutchStandards = (
     strtolower(
@@ -32,9 +32,9 @@ $dutchStandards = (
 
 if ($dutchStandards) {
     print "Importing Dutch Standards".PHP_EOL;
-    `symfony console app:import-ref /var/www/html/references/bc Belgic belgic BC{\$ndx}`;
-    `symfony console app:import-heidelberg`;
-    `symfony console app:import-canons-of-dort`;
+    shell_exec("symfony console app:import-ref /var/www/html/references/bc Belgic belgic BC{\$ndx}");
+    shell_exec("symfony console app:import-heidelberg");
+    shell_exec("symfony console app:import-ref /var/www/html/references/cd Canons cd CD");
 }
 
 $westminsterStandards = (
@@ -45,9 +45,9 @@ $westminsterStandards = (
 
 if ($westminsterStandards) {
     print "Importing Westminster Standards".PHP_EOL;
-    `symfony console app:import-ref /var/www/html/references/wcf 'Westminster Confession' wcf WCF{\$ndx}`;
-    `symfony console app:import-ref /var/www/html/references/wsc 'Westminster Shorter' wsc WSC{\$ndx}`;
-    `symfony console app:import-wlc /var/www/html/references/wlc 'Westminster Larger' wlc WLC{\$ndx}`;
+    shell_exec("symfony console app:import-ref /var/www/html/references/wcf 'Westminster Confession' wcf WCF{\$ndx}");
+    shell_exec("symfony console app:import-ref /var/www/html/references/wsc 'Westminster Shorter' wsc WSC{\$ndx}");
+    shell_exec("symfony console app:import-ref /var/www/html/references/wlc 'Westminster Larger' wlc WLC{\$ndx}");
 }
 
 $helveticConfessions = (
@@ -58,8 +58,8 @@ $helveticConfessions = (
 
 if ($helveticConfessions) {
     print "Importing Helvitic standards".PHP_EOL;
-    `symfony console app:import-ref /var/www/html/references/fhc 'First Helvetic Confession' 1hc 1HC{\$ndx}`;
-    `symfony console app:import-ref /var/www/html/references/shc 'Second Helvetic Confession' 2hc 2HC{\$ndx}`;
+    shell_exec("symfony console app:import-ref /var/www/html/references/fhc 'First Helvetic Confession' 1hc 1HC{\$ndx}");
+    shell_exec("symfony console app:import-ref /var/www/html/references/shc 'Second Helvetic Confession' 2hc 2HC{\$ndx}");
 }
 
 $miscStandards = (
@@ -70,12 +70,12 @@ $miscStandards = (
 
 if ($miscStandards) {
     print "Importing misc standards".PHP_EOL;
-    `symfony console app:import-ref /var/www/html/references/39a 'Thirty-Nine Articles' 39a 39A{\$ndx}`;
-    `symfony console app:import-ref /var/www/html/references/ac 'Augsberg Confession' agc AGC{\$ndx}`;
-    `symfony console app:import-ref /var/www/html/references/lbc 'London Baptist Confession' lbc LBC{\$ndx}`;
-    `symfony console app:import-ref /var/www/html/references/lsc 'Luther\'s Small Catechism' lsc LSC`;
-    `symfony console app:import-ref /var/www/html/references/llc 'Luther\'s Large Catechism' llc LLC`;
-    `symfony console app:import-ref /var/www/html/references/sd 'Savoy Declaration' sd SD{\$ndx}`;
+    shell_exec("symfony console app:import-ref /var/www/html/references/39a 'Thirty-Nine Articles' 39a 39A{\$ndx}");
+    shell_exec("symfony console app:import-ref /var/www/html/references/ac 'Augsberg Confession' agc AGC{\$ndx}");
+    shell_exec("symfony console app:import-ref /var/www/html/references/lbc 'London Baptist Confession' lbc LBC{\$ndx}");
+    shell_exec("symfony console app:import-ref /var/www/html/references/lsc 'Luther\'s Small Catechism' lsc LSC");
+    shell_exec("symfony console app:import-ref /var/www/html/references/llc 'Luther\'s Large Catechism' llc LLC");
+    shell_exec("symfony console app:import-ref /var/www/html/references/sd 'Savoy Declaration' sd SD{\$ndx}");
 }
 
 print "Sermon Notes Ready".PHP_EOL.PHP_EOL;