Bash script to take a screenshot and upload it to a server every 1s

Operating system: Xubuntu I'm trying to create a bash script that takes a screenshot of my screen and uploads the resulting file to a server. I tried many ways and even asked ChatGPT but still can't find a working solution. Could you please point me to the right direction? Thanks This is the code I am using #!/bin/bash # Set the FTP server hostname or IP address FTP_SERVER=xxx # Set the FTP username and password FTP_USERNAME=xxx FTP_PASSWORD=xxx # Set the local and remote file paths LOCAL_FILE=/home/nicola/screenshot.png REMOTE_FILE=/public_html/screenshots/screenshot.png # Connect to the FTP server and log in ftp -inv $FTP_SERVER << EOF user $FTP_USERNAME $FTP_PASSWORD # Send the file put $LOCAL_FILE $REMOTE_FILE # Quit bye EOF The file is correctly sent, now I need to repeat the operation once every second but the connection to the server should not be repeated I guess, so it should stay outside the loop. The files will not be overwritten, I intend to use Date or Time and append it to the filename