Does mv on a FAT filesystem actually rename or does it copy and delete?
Definitive answer: I created a loopback FAT32 filesystem, mounted it,
and did a "strace mv file file2":
rename("file", "file2") = 0
On 2018-02-03 07:29, Chris Green wrote:
> On Sat, Feb 03, 2018 at 09:50:31AM +0000, Chris Green wrote:
>> I want to rename some picture files on a mounted digital camera
>> filesystem. It is a VFAT filesystem.
>> If I rename one of the files using 'mv <xxxx.yyy>' will the file
> Typo of course, I meant 'mv file1 file2'.
>> *actually* be renamed by changing the directory entry only or will
>> mv copy the file to one with the new name and then delete the old one?
> Thanks for the answers so far but to re-emphasise why I asked the
> I know that mv of a file in a directory on a Linux type filesystem
> will just write the new name of a file in the directory without
> moving the data/contents of the file.
> However in different circumstances (e.g. across filesystems) it
> *can't* do this and has to copy/delete. I was just asking if
> anyone knows if 'mv file1 file2' on a VFAT (i.e. not native Linux)
> filesystem does the 'easy' thing (copy/delete) or not.
> Chris Green