Need Some Shell Help Bulk Renaming Files

[DoctorDemento]

I need some advise for a shell command or script to bulk rename filenames. My digital camera names files with the JPG extension capitalized, which creates big problems while coding web pages. So is there a simple way to rename all of these files with a lowercase jpg extension?

[mb_webguy]

If all of the files are in the same directory, you can use:

rename -v 's/\.JPG/\.jpg/' *.JPG

If they are in different directories, you'll have to use the following command from the topmost directory:

find ./ -name *.JPG -exec rename -v 's/\.JPG/\.jpg/' {} \;

However, an easy way to rename large numbers of files is to use the GPRename program, which is an easy-to-use GUI batch file renaming utility.

[ghostdog74]

I need some advise for a shell command or script to bulk rename filenames. My digital camera names files with the JPG extension capitalized, which creates big problems while coding web pages. So is there a simple way to rename all of these files with a lowercase jpg extension?

you can use the Python script here
eg usage

./filerenamer.py -p ".JPG" -e ".jpg" -l "*.JPG" #list only
./filerenamer.py -p ".JPG" -e ".jpg"  "*.JPG"  # remove -l to commit

or if you want to do it by hand

for files in *JPG
do
 mv "$files" "${files/JPG/jpg}"
done

[DoctorDemento]

Thank you, those both worked great.

[OlaugeB]

However, an easy way to rename large numbers of files is to use the GPRename program, which is an easy-to-use GUI batch file renaming utility.

GPRename is excellent thank you!