How to change case of multiple directories recursively

[blueray453]

I am using ccase. The following command works for renaming a single directory.

mv camelCase (ccase -t Kebab camelCase)

If I want to recursively rename all directories to kebab case then what would be the command.

I tried:

fd --type d -X  mv {} (ccase -t Kebab {})

and

fd --type d -X  mv {} $(ccase -t Kebab {})

giving error: [fd error]: Only one placeholder allowed for batch commands

[tmccombs]

I don't think you can do a bulk mv like that. You'll probably need to use -x instead. And you'll need to invoke a shell in order to call a nested command.

Something like:

fd --type d -x  bash -c 'mv {} $(ccase -t Kebab {})'

[blueray453]

Here is the directories:

mkdir -p {PascalCase{1..3}{1..3},camelCase}/PascalCase/{PascalCase,camelCase}{1..5} && touch tmpdir/{PascalCase{1..3}{1..3},camelCase}/PascalCase/{PascalCase,camelCase}{1..5}/test.txt

your command work for --max-depth 1.

fd --type d --max-depth 1 -x bash -c 'mv {} $(ccase -t Kebab {})'

When depth is more that 1 it give error:

mv: cannot stat './PascalCase31/PascalCase/PascalCase1': No such file or directory

Another issue:

If I run fd --type d --max-depth 1 -x bash -c 'mv {} $(ccase -t Kebab {})' twice then it says:

mv: cannot move './pascal-case-21' to a subdirectory of itself, './pascal-case-21/pascal-case-21'

Is there anything we can do about this. I mean something like, if file with this name does not exist then rename file.

[blueray453]

I think something like -depth and -execdir of find command will solve this problem.

-depth Process each directory's contents before the directory itself.

and

-execdir command {} +
Like -exec, but the specified command is run from the
subdirectory containing the matched file, which is not
normally the directory in which you started find.

Is there anything similar

[blueray453]

The following command solved my problem:

find . -depth -type d -execdir bash -c 'mv {} $(ccase -t Kebab {})' \;

Thank you very much for guiding me towards bash -c, however, not sure why i can use {} twice when inside bash -c