You may need to change the password of all your cPanel account in case of a potential security threat. But doing it manually will take a lot of time especially if you have hundreds of cPanel accounts.You can automate this process by simple shell scripts.

1. SSH to your VPS with root user.
   
   
2. Create a new file using your favorite editor. In our case, we have created file changecpanelpass.sh and add the below script on it.
   
   

   
   #! /bin/bash
   ls -1 /var/cpanel/users | while read user; do
   pass=`</dev/urandom tr -dc “A-Za-z0-9*-/+.*=_\|\\#” | head -c16
   echo “$user $pass” >> new-passwords.txt
   /scripts/realchpass $user $pass
   /scripts/ftpupdate
   done	

3. Save the file and give it provide executable permission to the script.
   
   

   chmod +x changecpanelpass.sh

4. Execute the script using command sh changecpanelpass.sh
   
   

This script will change passwords of all the cPanel account and create a file named new-passwords.txt which contains all the passwords.