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+After [[Mount Remote Storage]], you can already read or write files in the mounted directory.
+
+However, sometimes you want to have a command to cache file content directly, instead of find the file, trigger one read in order to cache the file content.
+
+And sometimes you may want to reduce local storage usage, to `uncache` the file content.
+
+## Cache Mounted File Content
+In `weed shell`, checkout `remote.cache` and `remote.uncache`:
+
+```
+> help remote.cache
+  remote.cache	# cache the file content for mounted directories or files
+
+	# assume a remote storage is configured to name "s3_1"
+	remote.configure -name=s3_1 -type=s3 -access_key=xxx -secret_key=yyy
+	# mount and pull one bucket
+	remote.mount -dir=xxx -remote=s3_1/bucket
+
+	# after mount, run one of these command to cache the content of the files
+	remote.cache -dir=xxx
+	remote.cache -dir=xxx/some/sub/dir
+
+> help remote.uncache
+  remote.uncache	# keep the metadata but remote cache the file content for mounted directories or files
+
+	remote.uncache -dir=xxx
+	remote.uncache -dir=xxx/some/sub/dir
+
+```
+
+## Note
+
+If you want some more flexibility to decide which file to cache or uncache, please help to send a PR.