Re: Re: How to find dirs with single item

[Clive Standbridge <list-user@tgstandbridges.plus.com>]

>  Hi.
> 
> On Thu, 29 May 2014 14:31:03 -0500
> Dennis Wicks <wix@mgssub.com> wrote:
> 
> > Can't quite figure out how to do this.
> > 
> > I'd like to be able to scan a Volume or directory and find 
> > all directories that have only one item in them. Either 
> > directory or file.
> 
> Try this (yep, links should be 3, not 1):
> 
> find <where_you_want_to_search> -type d -links 3
> 
> Reco

That looked neat (just a single process) but it doesn't quite answer
the question. It finds directories containing exactly one subdirectory
and any number of other files.

clive@rimmer:~$ find temp -type d -links 3 | xargs -r ls -A1F
temp/for-brum/notes:
general/

temp/here:
sub-here/

temp/offlineimap-dummy-config:
.mutt/
.offlineimaprc
.offlineimaprc.~1~

temp/stuff:
a/

temp/stuff/a:
b/
xyz

temp/there:
sub-there/



A different approach: find everything, strip off the leaf entry and
filter out duplicate parent dirs:

   find temp |sed 's|[^/]*$||' |sort |uniq -u

For example:
clive@rimmer:~$ find temp |sed 's|[^/]*$||' |sort |uniq -u | xargs -r
ls -A1F
temp/for-brum/notes/:
general/

temp/for-brum/usbmount/mount.d/:
00_create_model_symlink*

temp/for-brum/usbmount/umount.d/:
00_remove_model_symlink*

temp/here/:
sub-here/

temp/here/sub-here/:
extra-here

temp/plates/clive-favourites/:
clive-favourites.control.template

temp/plates/clive-mail-client/:
clive-mail-client.control.template

temp/plates/clive-mail-local-delivery/:
clive-mail-local-delivery.control.template

temp/plates/clive-mail/:
clive-mail.control.template

temp/stuff/:
a/

temp/there/:
sub-there/

temp/there/sub-there/:
extra-there




PS the sort is probably unnecessary, just being careful.


-- 
Cheers,
Clive