google cloud storage - How to count number of file in a bucket-folder with gsutil -

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is there option count number of files in bucket-folders?

like: 

gsutil ls -count -recursive gs://bucket/folder  result:   666 files

i want total number of files compare amount sync-folder on server.

i don't in manual.

the gsutil ls command options -l (long listing) , -r (recursive listing) list entire bucket recursively , produce total count @ end:

$ gsutil ls -lr gs://pub     104413  2011-04-03t20:58:02z  gs://pub/someoftheteam.jpg        172  2012-06-18t21:51:01z  gs://pub/cloud_storage_storage_schema_v0.json       1379  2012-06-18t21:51:01z  gs://pub/cloud_storage_usage_schema_v0.json    1767691  2013-09-18t07:57:42z  gs://pub/gsutil.tar.gz    2445111  2013-09-18t07:57:44z  gs://pub/gsutil.zip       1136  2012-07-19t16:01:05z  gs://pub/gsutil_2.0.releasenotes.txt ... <snipped> ...  gs://pub/apt/pool/main/p/python-socksipy-branch/:      10372  2013-06-10t22:52:58z  gs://pub/apt/pool/main/p/python-socksipy-branch/python-socksipy-branch_1.01_all.deb  gs://pub/shakespeare/:         84  2010-05-07t23:36:25z  gs://pub/shakespeare/rose.txt total: 144 objects, 102723169 bytes (97.96 mb)

if want total, can pipe output tail command:

$ gsutil ls -lr gs://pub | tail -n 1 total: 144 objects, 102723169 bytes (97.96 mb)

update

gsutil has du command. makes easier count:

$ gsutil du gs://pub | wc -l 232

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