Hi All, New member of the forums and have a newbie question. I have about 400 files in a folder with same extension. For ex. name1.htb.mat, nam2.htb.mat etc. I want to remove the .htb part from each file name, so the new file names will be name1.mat, name2.mat. Is there a way to do this in Mac? Or via Unix? Thanks in advance for the help. SR.