[FIX] if no parameter is given

bin/psql

@@ -2,20 +2,22 @@
 
 if [[ $1 == "" ]]
 then echo "USAGE : ./psql gargantext.ini"
-fi
+else
+  getter () {
+    grep $2 $1 | sed "s/^.*= //"
+  }
+
+  USER=$(getter $1 "DB_USER")
+  NAME=$(getter $1 "DB_NAME")
 
+  PASS=$(getter $1 "DB_PASS")
+  HOST=$(getter $1 "DB_HOST")
+  PORT=$(getter $1 "DB_PORT")
 
-getter () {
-  grep $2 $1 | sed "s/^.*= //"
-}
 
-USER=$(getter $1 "DB_USER")
-NAME=$(getter $1 "DB_NAME")
+  psql "postgresql://${USER}:${PASS}@${HOST}:${PORT}/${NAME}"
 
-PASS=$(getter $1 "DB_PASS")
-HOST=$(getter $1 "DB_HOST")
-PORT=$(getter $1 "DB_PORT")
+fi
 
 
-psql "postgresql://${USER}:${PASS}@${HOST}:${PORT}/${NAME}"