How to remove spaces from file names in bulk using Window platform

bulk_filename_rename.ps1

# Steps:
# Open a Powershell (Window).
# Go to the folder with the cd command (eg.: cd "path of your folder").
# e.g: cd C:\testFolder
# then type below command & replace .jpg file format with your file format.
# space is replace with underscore
# https://www.dropbox.com/s/4n1kdsfrohjt6tr/20200107_screenshot.jpg?dl=0

get-childitem *.jpg | foreach {rename-item $_ $_.name.replace(" ","_")}