Change extension of file type in multiple files in Linux
Submitted by Des on Sun, 08/16/2015 - 18:14
If your interested in converting all higher case "JPG" extensions to lower case "jpg" You could use the command line utility rename like so. CD into directory you want to change. Then
rename -n 's/\.JPG$/\.jpg/' *
Use -n option to test what will be changed, then when you happy with results use without like so
rename 's/\.JPG$/\.jpg/' *