[USNA91]

When I transferred all my files from my PC, the naturally came with the file extensions in the file name. Is there any way to remove them in bulk?

In other words, is there any way to strip them from the file names of several files at once?

I already have the selection made to hide the extensions, but they still remain. Files that I've manually removed the extensions from continue to operate perfectly.

I should add that I'm talking about data files like doc, xls, mpg, etc. I'm not messing with application files.

Thanks.

[wataru]

You don't want to remove extensions because in most cases the OS will not recognize the file. You did not remove the extensions from the files you mentioned; deleting the extension via the Finder's standard filename editing thing simply hides the extension, as you can verify by Getting Info on the items.

What you want to do is get info on items and enable the "hide extension" option in the Name area. I don't know how to automate that for many files, though.

[USNA91]

Aw, heck!

Select all the files, go to "Get Info", check "Hide Extensions".


So why didn't the other "Hide Extension" work?

[Nai no Kami]

If you have your system set to Hide Extensions and you wipe them from the name of the file by selecting it in the Finder, you actually don't delete the extension, as a Get Info can reveal under the "Name and Extension" field.
If, on the contrary, you do a Get Info for the file and strip the extension from there, you will likely experience what our friend wataru advices.

[P]

Originally Posted by USNA91

Aw, heck!

Select all the files, go to "Get Info", check "Hide Extensions".


So why didn't the other "Hide Extension" work?

They don't the same thing. If the Preferences "Hide Extension" is on, the extensions are hidden for files with the "Hide Extension" file flag set. If that Preferences item is off, no extensions are hidden. Confusing? Yes - but there is a point to it. All files considered safe - essentially files that you create yourself, but also files installed by an app or "hidden" inside a disk image - get the "Hide Extension" flag by default. All other files don't get it, including files that you copy from the 'net. That way, a file inside say an email always gets the correct extension, avoiding the problem with double extensions common in Windows viruses.