fix by comments

doc/design/file_manager/README.md

@@ -3,7 +3,7 @@
 在本文档中，我们设计说明了名为FileManager系统，方便用户管理存放到PaddlePaddle Cloud上的文件。   
 主要功能包括：
 
-- 提供常用的命令行文件管理命令管理文件
+- 提供常用的命令行管理命令管理文件和目录
 	- 支持的命令在[Here](./pfs/pfs.md)
 - 支持大文件的断点上传、下载  
 
@@ -27,7 +27,7 @@
 	- 用Golang写，可以跨平台执行
 
 - 双向验证   
-	PFSClient需要和Ingress之间做双向验证<sup>[tls](#tls)</sup>，所有用户需要首先在`cloud.paddlepaddle.org`上注册一下，申请用户空间，并且把系统生成的Key、CRT、CA下载到本地，然后才能使用PFSClient。
+	PFSClient需要和Ingress之间做双向验证<sup>[tls](#tls)</sup>，所以用户需要首先在`cloud.paddlepaddle.org`上注册一下，申请用户空间，并且把系统生成的Key、CRT、CA下载到本地，然后才能使用PFSClient。
 	
 ### Ingress
 - 功能：  
@@ -43,7 +43,7 @@ FileServer是一个用GoRPC写的HTTPServer，提供[RESTful API](./RESTAPI.md)
 ## 文件传输优化
 
 ### 分块文件传输
-用户文件可能是比较大的，上传到Cloud或者下载到本地的时间可能比较长，而且在传输的过程中也可能出现网络不稳定的情况。为了应对以上的问题，我们提出了Chunk的概念，一个Chunk由所在的文件偏移、数据、数据长度及校验值组成。文件数据内容的上传和下载都是都过Chunk的操作来实现的。由于Chunk比较小（默认256K），完成一个传输动作完成的时间也比较短，不容易出错。PFSClient在传输完毕最后一个Chunk的时候检查desttination文件的MD5值是否和source文件一致。
+用户文件可能是比较大的，上传到Cloud或者下载到本地的时间可能比较长，而且在传输的过程中也可能出现网络不稳定的情况。为了应对以上的问题，我们提出了Chunk的概念，一个Chunk由所在的文件偏移、数据、数据长度及校验值组成。文件数据内容的上传和下载都是都过Chunk的操作来实现的。由于Chunk比较小（默认256K），完成一个传输动作完成的时间也比较短，不容易出错。PFSClient在传输完毕最后一个Chunk的时候检查destination文件的MD5值是否和source文件一致。
 
 一个典型的Chunk如下所示：
 

doc/design/file_manager/pfs/cp.md

 # Name  
-cp - copy files and directories
+cp - copy files
 
 # Synopsis
-` cp [OPTION]...
-<LocalPath> <PFSPath> or <PFSPath> <LocalPath> or <PFSPath> <PFSPath>`
+```
+cp [-r] [-f | -n] [-v] [--preserve--links] <LocalPath> <PFSPath>
+cp [-r] [-f | -n] [-v] [--preserve--links] <LocalPath> ... <PFSPath>
+cp [-r] [-f | -n] [-v] [--preserve--links] <PFSPath> <LocalPath> 
+cp [-r] [-f | -n] [-v] [--preserve--links] <PFSPath> ... <LocalPath>
+cp [-r] [-f | -n] [-v] [--preserve--links] <PFSPath> <PFSPath> 
+cp [-r] [-f | -n] [-v] [--preserve--links] <PFSPath> ... <PFSPath>
+```
 
 # Description
+```	   
+The following options are available:
+
+-r
+   Copy directories recursively
+   
+-f      
+	Do not prompt for confirmation before overwriting the destination path.  (The -f option overrides previous -n options.)
+
+-n      
+	Do not overwrite an existing file.  (The -n option overrides previous -f options.)
+
+-v      
+	Cause cp to be verbose, showing files after they are copied.
 
-```		
 --preserve--links
    Reserve links when copy links
-   
--R, -r, --recursive
-   Copy directories recursively
 ```
 
 # Examples
 - The following command copies a single file to pfs
 
 ```
-paddle pfs cp ./text1.txt /pfs/mydir/text1.txt
-```
-
-Output
-
-```
-upload ./text1.txt to /pfs/mydir/text1.txt
+paddle pfs cp ./text1.txt /pfs/$DATACENTER/home/$USER/text1.txt
 ```
 
 - The following command copies pfs file to a local file
 
 ```
-paddle pfs cp /pfs/mydir/text1.txt ./text1.txt
-```
-
-Output
-
-```
-download /pfs/mydir/text1.txt to ./text1.txt
+paddle pfs cp /pfs/$DATACENTER/home/$USER/text1.txt ./text1.txt
 ```

doc/design/file_manager/pfs/ls.md

 # Name  
-ls - list directory contents or a file attributes
+ls - list directory(ies)'s contents or file(s)'s attributes
 
 # Synopsis
-` ls [OPTION]... <PFSPath>`
+`ls [-r] <PFSPath> ...`
 
 # Description
 
-```       
--R, -r, --recursive
-   Copy directories recursively
-   
---page-size (integer) 
-	The number of results to return in each response to a list operation. The default value is 1000 (the maximum allowed). Using a lower value may help if operation time out.
+```
+The following options are available:
+       
+-r
+   List directory(ies) recursively
 ```
 
 # Examples
 - The following command lists a single file
 
 ```
-paddle pfs ls /pfs/mydir/text1.txt
-```
-
-Output
-
-```
-2017-05-5 17:04:30 text1.txt
+paddle pfs ls  /pfs/$DATACENTER/home/$USER/text1.txt
 ```
 
 - The following command lists directory contents
 
 ```
-paddle pfs ls  /pfs/mydir
-```
-
-Output
-
-```
-2017-05-5 17:04:30 text1.txt
-2017-05-5 17:04:30 text2.txt
-...
+paddle pfs ls  / /pfs/$DATACENTER/home/$USER/folder
 ```

doc/design/file_manager/pfs/mkdir.md

@@ -2,18 +2,12 @@
 mkdir  - mkdir directory(ies)
 
 # Synopsis
-`mkdir [OPTION]... <PFSPath> ...`
+`mkdir <PFSPath> ...`
 
 # Description
-Create the pfs directory(ies), if they do not already exist. And create intermediate directories as required
+Create the pfs directory(ies), if it(they) does(do) not already exist. And create intermediate directories as required.
 
 # Examples
 ```
-paddle pfs mkdir /pfs/mydir1
-```
-
-Output
-
-```
-make directory /pfs/mydir1
+paddle pfs mkdir  /pfs/$DATACENTER/home/$USER/folder
 ```

doc/design/file_manager/pfs/mv.md

 # Name  
-mv - move (rename) files or directories
+mv - move (rename) files
 
 
 # Synopsis
-If destination already exist, please [rm](rm.md) it first.
-
 ```
-mv [OPTION]...
-<LocalPath> <PFSPath> or <PFSPath> <LocalPath> or <PFSPath> <PFSPath>
+mv [-f | -n] [-v] <LocalPath> <PFSPath>
+mv [-f | -n] [-v] <LocalPath> ... <PFSPath>
+mv [-f | -n] [-v] <PFSPath> <LocalPath> 
+mv [-f | -n] [-v] <PFSPath> ... <LocalPath> 
+mv [-f | -n] [-v] <PFSPath> <PFSPath> 
+mv [-f | -n] [-v] <PFSPath> ... <PFSPath> 
 ```
 
 # Description
-```	
 ```
+The following options are available:
 
-# Examples
-- The following command move a single file to pfs
+-f      
+	Do not prompt for confirmation before overwriting the destination path.  (The -f option overrides previous -n options.)
 
-```
-paddle pfs mv ./text1.txt /pfs/mydirectory/test1.txt
+-n      
+	Do not overwrite an existing file.  (The -n option overrides previous -f options.)
+
+-v      
+	Cause mv to be verbose, showing files after they are moved.
 ```
 
-Output
+# Examples
+- The following command moves a single file to pfs
 
 ```
-move ./text1.txt /pfs/mydirectory/test1.txt
+paddle pfs mv ./text1.txt /pfs/$DATACENTER/home/$USER/text1.txt
 ```

doc/design/file_manager/pfs/pfs.md

 # PFS Client
 
 ## Description
-The `pfs` command is a Command Line Interface to manage your files on Paddle Cloud
+The `pfs` command is a Command Line Interface to manage your files on PaddlePaddle Cloud
 
 ## Synopsis
 ```
@@ -28,10 +28,10 @@ paddle [options] pfs <subcommand> [parameters]
 
 ## Path Arguments
 When using a command, we need to specify path arguments. There are two path argument type: `localpath` and `pfspath`.  
-A `pfspath` begin with `/pfs`, eg: `/pfs/mydir/text1.txt`.
+A `pfspath` begin with `/pfs`, eg: `/pfs/$DATACENTER/home/$USER/folder`.
 
 ## order of Path Arguments
-Commonly, if there are two path arguments. The first is the source, and the second is the destination.
+Commonly, if there are two path arguments, the first is the source, and the second is the destination.
 
 ## Subcommonds
 - [rm](rm.md)

doc/design/file_manager/pfs/rm.md

@@ -3,43 +3,30 @@ rm - remove files or directories
 
 # Synopsis
 ```
-rm [OPTION]... <PFSPath>...
+rm [-r] [-v] <PFSPath> ...
 ```
 
 # Description
 
 ```
--r, -R, --recursive 
-	remove directories and their contents recursively
+The following options are available:
 
---page-size (integer) 
-	The number of results to return in each response to a list operation. The default value is 1000 (the maximum allowed). Using a lower value may help if an operation times out	
+-r 
+	remove directories and their contents recursively
+	
+-v      
+	Cause rm to be verbose, showing files after they are removed.
 ```
 
 # Examples
-- The following command deletes a single files
-
-```
-paddle pfs rm /pfs/mydirectory/test1.txt
-```
-
-Output
-
-```
-delete /pfs/mydirectory/test1.txt
-```
-
-
-- The following command deletes a  directory recursively.
+- The following command deletes a single file:
 
 ```
-paddle pfs rm -r /pfs/mydirectory
+paddle pfs rm /pfs/$DATACENTER/home/$USER/test1.txt
 ```
 
-Output
+- The following command deletes a  directory recursively:
 
 ```
-delete /pfs/mydirectory/1.txt
-delete /pfs/mydirectory/2.txt
-...
+paddle pfs rm -r /pfs/$DATACENTER/home/$USER/folder
 ```

doc/design/file_manager/pfs/sync.md

 # Name  
-sync - sync directories. Recursively copies new and updated files from the source directory to the destination
+sync - sync directories. Recursively copies new and updated files from the source directory to the destination.
 
 # Synopsis
-` sync [OPTIONS]...
-<LocalPath> <PFSPath> or <PFSPath> <LocalPath> or <PFSPath> <PFSPath>`
+``` 
+sync [--preserve--links] [-v] <LocalPath> <PFSPath> 
+sync [--preserve--links] [-v] <PFSPath> <LocalPath> 
+sync [--preserve--links] [-v] <PFSPath> <PFSPath>`
+```
 
 # Description
 
 ```
+The following options are available:
+
 --preserve--links
-   Reserve links when copy links
+   Reserve links when copy links.
+   
+-v 
+	Cause sync to be verbose, showing files after their's synchronization is complete.
 ```
 
 # Examples
-- The following command sync locally directory to pfs
-
-```
-paddle pfs sync ./dir1 /pfs/mydir1
-```
-
-Output
-
-```
-upload ./dir1/text1.txt to /pfs/mydir1/text2.txt
-upload ./dir1/text2.txt to /pfs/mydir1/text2.txt
-...
-```
-
-- The following command sync pfs directory to local
+- The following command sync locally directory to pfs.
 
 ```
-paddle pfs sync /pfs/mydir1 .
+paddle pfs sync ./dir1 /pfs/$DATACENTER/home/$USER/mydir1
 ```
 
-Output
+- The following command sync pfs directory to local.
 
 ```
-download /pfs/mydir1/text1.txt to ./text1.txt
-download /pfs/mydir1/text2.txt to ./text2.txt
-...
+paddle pfs sync /pfs/$DATACENTER/home/$USER/mydir1 .
 ```