Provide (or document) an option to ignore directories

[KasparEtter]

This issue started out as a wish for an enhancement, but, as it turned out, it's also a bug.

When renaming files with rename '*' or rename '**/*', I would like to be able to only rename files but not directories without enforcing any naming conventions. My current workaround is to use rename '**/*.*' because my directories rarely contain periods while all the files I'm interested in typically have a suffix.

Now to the bug part: If you rename with '**/*' files in a subdirectory and the directory itself is also renamed (due to the "limitation" described above), then the command fails on all files in the subdirectory with <filepath> does not exist! Operation skipped.. Ideally, the tool would either rename directories last or keep track of the renames dynamically.

[jhotmann]

Fixed in 6.1.0

[KasparEtter]

Just for the record: Once #18 is merged to restore previous directory handling, nested renaming including directories (i.e. without using -d) still fails with <filepath> does not exist! Operation skipped.. I leave it up to you whether you want to address this (and reopen this issue until then) or whether the "workaround" (with -d) is good enough. It is good enough for me, it's just not very user-friendly (but probably not trivial to fix). And you wouldn't be able to rename nested directories if you wanted to do so. (An option like --only-directories wouldn't solve this without addressing the underlying problem.)