show prompt when there are no user or password

create-znc_account.sh

@@ -1,23 +1,16 @@
 #!/bin/bash
 
-# To merge it with 'create-account':
-# source create-znc_account/create-znc_account.sh
-
-# to create backups?
-
 # ZNC account creation
 CONF="$HOME/.znc/configs/znc.conf"
 
 # $username and $password are retrieved from create-account script
-if [[ -z $username || -z $password ]] && [[ -z $1 || -z $2 ]]
+if [[ -z $1 || -z $2 ]]
 then    
         echo -e "Usage: $(basename $0) [username] [password] "
         exit
-elif [[ -z $username && -z $password ]] || [[ -n $1 && -n $2 ]]
-then    
-        username=$1
-        password=$2
-fi
+if
+username=$1
+password=$2
 
 pkill -10 -u znc znc # Rewrite znc.conf
 sleep 1
@@ -35,7 +28,5 @@ EOF
 echo "  </Pass>" >> $CONF
 echo "</User>" >> $CONF
 
-sleep 1
 pkill -1 -u znc znc  # Reload znc.conf
-sleep 1
 pkill -10 -u znc znc # Rewrite znc.conf