Update prepare_data.sh

Closes #1 (closed)

prepare_data.sh

@@ -24,7 +24,9 @@ wget --backups=1 -P cbioportal/mysql-snapshots/initialized_no_studies https://gi
 #mkdir -p cbioportal/cbioportal_mysql_data
 #tar -xf cbioportal/mysql-snapshots/initialized_no_studies/cbipportal_mysql.tgz -C cbioportal/cbioportal_mysql_data
 
-sudo rm -rf cbioportal/study/*
+set +e
+
+rm -rf cbioportal/study/* || sudo rm -rf cbioportal/study/*
 
 docker rm -f copy