mirror of https://github.com/ceph/ceph
612 lines
13 KiB
ReStructuredText
612 lines
13 KiB
ReStructuredText
:orphan:
|
|
|
|
===================================================
|
|
cephfs-shell -- Shell-like tool talking with CephFS
|
|
===================================================
|
|
|
|
.. program:: cephfs-shell
|
|
|
|
Synopsis
|
|
========
|
|
|
|
| **cephfs-shell** [options] [command]
|
|
| **cephfs-shell** [options] -- [command, command,...]
|
|
|
|
Description
|
|
===========
|
|
|
|
CephFS Shell provides shell-like commands that directly interact with the
|
|
Ceph File System.
|
|
|
|
This tool can be used in interactive mode as well as in non-interactive mode.
|
|
In former mode, cephfs-shell opens a shell session and after the given command
|
|
is finished, it prints the prompt string and waits indefinitely. When the
|
|
shell session is finished, cephfs-shell quits with the return value of last
|
|
executed command. In non-interactive mode, cephfs-shell issues a command and
|
|
exits right after the command's execution is complete with the command's
|
|
return value.
|
|
|
|
Behaviour of CephFS Shell can be tweaked using ``cephfs-shell.conf``. Refer to
|
|
`CephFS Shell Configuration File`_ for details.
|
|
|
|
Options
|
|
=======
|
|
|
|
.. option:: -c, --config FILE
|
|
|
|
Path to cephfs-shell.conf
|
|
|
|
.. option:: -b, --batch FILE
|
|
|
|
Path to batch file.
|
|
|
|
.. option:: -t, --test FILE
|
|
|
|
Path to transcript(s) in FILE for testing
|
|
|
|
.. note::
|
|
|
|
Latest version of the cmd2 module is required for running cephfs-shell.
|
|
If CephFS is installed through source, execute cephfs-shell in the build
|
|
directory. It can also be executed as following using virtualenv:
|
|
|
|
.. code:: bash
|
|
|
|
[build]$ python3 -m venv venv && source venv/bin/activate && pip3 install cmd2
|
|
[build]$ source vstart_environment.sh && source venv/bin/activate && python3 ../src/tools/cephfs/cephfs-shell
|
|
|
|
Commands
|
|
========
|
|
|
|
mkdir
|
|
-----
|
|
|
|
Create the directory(ies), if they do not already exist.
|
|
|
|
Usage :
|
|
|
|
mkdir [-option] <directory>...
|
|
|
|
* directory - name of the directory to be created.
|
|
|
|
Options :
|
|
-m MODE Sets the access mode for the new directory.
|
|
-p, --parent Create parent directories as necessary. When this option is specified, no error is reported if a directory already exists.
|
|
|
|
put
|
|
---
|
|
|
|
Copy a file/directory to Ceph File System from Local File System.
|
|
|
|
Usage :
|
|
|
|
put [options] <source_path> [target_path]
|
|
|
|
* source_path - local file/directory path to be copied to cephfs.
|
|
* if `.` copies all the file/directories in the local working directory.
|
|
* if `-` Reads the input from stdin.
|
|
|
|
* target_path - remote directory path where the files/directories are to be copied to.
|
|
* if `.` files/directories are copied to the remote working directory.
|
|
|
|
Options :
|
|
-f, --force Overwrites the destination if it already exists.
|
|
|
|
|
|
get
|
|
---
|
|
|
|
Copy a file from Ceph File System to Local File System.
|
|
|
|
Usage :
|
|
|
|
get [options] <source_path> [target_path]
|
|
|
|
* source_path - remote file/directory path which is to be copied to local file system.
|
|
* if `.` copies all the file/directories in the remote working directory.
|
|
|
|
* target_path - local directory path where the files/directories are to be copied to.
|
|
* if `.` files/directories are copied to the local working directory.
|
|
* if `-` Writes output to stdout.
|
|
|
|
Options:
|
|
-f, --force Overwrites the destination if it already exists.
|
|
|
|
ls
|
|
--
|
|
|
|
List all the files and directories in the current working directory.
|
|
|
|
Usage :
|
|
|
|
ls [option] [directory]...
|
|
|
|
* directory - name of directory whose files/directories are to be listed.
|
|
* By default current working directory's files/directories are listed.
|
|
|
|
Options:
|
|
-l, --long list with long format - show permissions
|
|
-r, --reverse reverse sort
|
|
-H human readable
|
|
-a, -all ignore entries starting with .
|
|
-S Sort by file_size
|
|
|
|
|
|
cat
|
|
---
|
|
|
|
Concatenate files and print on the standard output
|
|
|
|
Usage :
|
|
|
|
cat <file>....
|
|
|
|
* file - name of the file
|
|
|
|
cd
|
|
--
|
|
|
|
Change current working directory.
|
|
|
|
Usage :
|
|
|
|
cd [directory]
|
|
|
|
* directory - path/directory name. If no directory is mentioned it is changed to the root directory.
|
|
* If '.' moves to the parent directory of the current directory.
|
|
|
|
cwd
|
|
---
|
|
|
|
Get current working directory.
|
|
|
|
Usage :
|
|
|
|
cwd
|
|
|
|
|
|
quit/Ctrl + D
|
|
-------------
|
|
|
|
Close the shell.
|
|
|
|
chmod
|
|
-----
|
|
|
|
Change the permissions of file/directory.
|
|
|
|
Usage :
|
|
|
|
chmod <mode> <file/directory>
|
|
|
|
mv
|
|
--
|
|
|
|
Moves files/Directory from source to destination.
|
|
|
|
Usage :
|
|
|
|
mv <source_path> <destination_path>
|
|
|
|
rmdir
|
|
-----
|
|
|
|
Delete a directory(ies).
|
|
|
|
Usage :
|
|
|
|
rmdir <directory_name>.....
|
|
|
|
rm
|
|
--
|
|
|
|
Remove a file(es).
|
|
|
|
Usage :
|
|
|
|
rm <file_name/pattern>...
|
|
|
|
|
|
write
|
|
-----
|
|
|
|
Create and Write a file.
|
|
|
|
Usage :
|
|
|
|
write <file_name>
|
|
<Enter Data>
|
|
Ctrl+D Exit.
|
|
|
|
lls
|
|
---
|
|
|
|
Lists all files and directories in the specified directory.Current local directory files and directories are listed if no path is mentioned
|
|
|
|
Usage:
|
|
|
|
lls <path>.....
|
|
|
|
lcd
|
|
---
|
|
|
|
Moves into the given local directory.
|
|
|
|
Usage :
|
|
|
|
lcd <path>
|
|
|
|
lpwd
|
|
----
|
|
|
|
Prints the absolute path of the current local directory.
|
|
|
|
Usage :
|
|
|
|
lpwd
|
|
|
|
|
|
umask
|
|
-----
|
|
|
|
Set and get the file mode creation mask
|
|
|
|
Usage :
|
|
|
|
umask [mode]
|
|
|
|
alias
|
|
-----
|
|
|
|
Define or display aliases
|
|
|
|
Usage:
|
|
|
|
alias [name] | [<name> <value>]
|
|
|
|
* name - name of the alias being looked up, added, or replaced
|
|
* value - what the alias will be resolved to (if adding or replacing) this can contain spaces and does not need to be quoted
|
|
|
|
run_pyscript
|
|
------------
|
|
|
|
Runs a python script file inside the console
|
|
|
|
Usage:
|
|
|
|
run_pyscript <script_path> [script_arguments]
|
|
|
|
* Console commands can be executed inside this script with cmd ("your command")
|
|
However, you cannot run nested "py" or "pyscript" commands from within this
|
|
script. Paths or arguments that contain spaces must be enclosed in quotes
|
|
|
|
.. note:: This command is available as ``pyscript`` for cmd2 versions 0.9.13
|
|
or less.
|
|
|
|
py
|
|
--
|
|
|
|
Invoke python command, shell, or script
|
|
|
|
Usage :
|
|
|
|
py <command>: Executes a Python command.
|
|
py: Enters interactive Python mode.
|
|
|
|
shortcuts
|
|
---------
|
|
|
|
Lists shortcuts (aliases) available
|
|
|
|
Usage :
|
|
|
|
shortcuts
|
|
|
|
history
|
|
-------
|
|
|
|
View, run, edit, and save previously entered commands.
|
|
|
|
Usage :
|
|
|
|
history [-h] [-r | -e | -s | -o FILE | -t TRANSCRIPT] [arg]
|
|
|
|
Options:
|
|
-h show this help message and exit
|
|
-r run selected history items
|
|
-e edit and then run selected history items
|
|
-s script format; no separation lines
|
|
-o FILE output commands to a script file
|
|
-t TRANSCRIPT output commands and results to a transcript file
|
|
|
|
unalias
|
|
-------
|
|
|
|
Unsets aliases
|
|
|
|
Usage :
|
|
|
|
unalias [-a] name [name ...]
|
|
|
|
* name - name of the alias being unset
|
|
|
|
Options:
|
|
-a remove all alias definitions
|
|
|
|
set
|
|
---
|
|
|
|
Sets a settable parameter or shows current settings of parameters.
|
|
|
|
Usage :
|
|
|
|
set [-h] [-a] [-l] [settable [settable ...]]
|
|
|
|
* Call without arguments for a list of settable parameters with their values.
|
|
|
|
Options :
|
|
-h show this help message and exit
|
|
-a display read-only settings as well
|
|
-l describe function of parameter
|
|
|
|
edit
|
|
----
|
|
|
|
Edit a file in a text editor.
|
|
|
|
Usage:
|
|
|
|
edit [file_path]
|
|
|
|
* file_path - path to a file to open in editor
|
|
|
|
run_script
|
|
----------
|
|
|
|
Runs commands in script file that is encoded as either ASCII or UTF-8 text.
|
|
Each command in the script should be separated by a newline.
|
|
|
|
Usage:
|
|
|
|
run_script <file_path>
|
|
|
|
|
|
* file_path - a file path pointing to a script
|
|
|
|
.. note:: This command is available as ``load`` for cmd2 versions 0.9.13
|
|
or less.
|
|
|
|
shell
|
|
-----
|
|
|
|
Execute a command as if at the OS prompt.
|
|
|
|
Usage:
|
|
|
|
shell <command> [arguments]
|
|
|
|
locate
|
|
------
|
|
|
|
Find an item in File System
|
|
|
|
Usage:
|
|
|
|
locate [options] <name>
|
|
|
|
Options :
|
|
-c Count number of items found
|
|
-i Ignore case
|
|
|
|
stat
|
|
------
|
|
|
|
Display file status.
|
|
|
|
Usage :
|
|
|
|
stat [-h] <file_name> [file_name ...]
|
|
|
|
Options :
|
|
-h Shows the help message
|
|
|
|
snap
|
|
----
|
|
|
|
Create or Delete Snapshot
|
|
|
|
Usage:
|
|
|
|
snap {create|delete} <snap_name> <dir_name>
|
|
|
|
* snap_name - Snapshot name to be created or deleted
|
|
|
|
* dir_name - directory under which snapshot should be created or deleted
|
|
|
|
setxattr
|
|
--------
|
|
|
|
Set extended attribute for a file
|
|
|
|
Usage :
|
|
|
|
setxattr [-h] <path> <name> <value>
|
|
|
|
* path - Path to the file
|
|
|
|
* name - Extended attribute name to get or set
|
|
|
|
* value - Extended attribute value to be set
|
|
|
|
Options:
|
|
-h, --help Shows the help message
|
|
|
|
getxattr
|
|
--------
|
|
|
|
Get extended attribute value for the name associated with the path
|
|
|
|
Usage :
|
|
|
|
getxattr [-h] <path> <name>
|
|
|
|
* path - Path to the file
|
|
|
|
* name - Extended attribute name to get or set
|
|
|
|
Options:
|
|
-h, --help Shows the help message
|
|
|
|
listxattr
|
|
---------
|
|
|
|
List extended attribute names associated with the path
|
|
|
|
Usage :
|
|
|
|
listxattr [-h] <path>
|
|
|
|
* path - Path to the file
|
|
|
|
Options:
|
|
-h, --help Shows the help message
|
|
|
|
df
|
|
--
|
|
|
|
Display amount of available disk space
|
|
|
|
Usage :
|
|
|
|
df [-h] [file [file ...]]
|
|
|
|
* file - name of the file
|
|
|
|
Options:
|
|
-h, --help Shows the help message
|
|
|
|
du
|
|
--
|
|
|
|
Show disk usage of a directory
|
|
|
|
Usage :
|
|
|
|
du [-h] [-r] [paths [paths ...]]
|
|
|
|
* paths - name of the directory
|
|
|
|
Options:
|
|
-h, --help Shows the help message
|
|
|
|
-r Recursive Disk usage of all directories
|
|
|
|
|
|
quota
|
|
-----
|
|
|
|
Quota management for a Directory
|
|
|
|
Usage :
|
|
|
|
quota [-h] [--max_bytes [MAX_BYTES]] [--max_files [MAX_FILES]] {get,set} path
|
|
|
|
* {get,set} - quota operation type.
|
|
|
|
* path - name of the directory.
|
|
|
|
Options :
|
|
-h, --help Shows the help message
|
|
|
|
--max_bytes MAX_BYTES Set max cumulative size of the data under this directory
|
|
|
|
--max_files MAX_FILES Set total number of files under this directory tree
|
|
|
|
CephFS Shell Configuration File
|
|
===============================
|
|
By default, CephFS Shell looks for ``cephfs-shell.conf`` in the path provided
|
|
by the environment variable ``CEPHFS_SHELL_CONF`` and then in user's home
|
|
directory (``~/.cephfs-shell.conf``).
|
|
|
|
Right now, CephFS Shell inherits all its options from its dependency ``cmd2``.
|
|
Therefore, these options might vary with the version of ``cmd2`` installed on
|
|
your system. Refer to ``cmd2`` docs for a description of these options.
|
|
|
|
Following is a sample ``cephfs-shell.conf``
|
|
|
|
.. code-block:: ini
|
|
|
|
[cephfs-shell]
|
|
prompt = CephFS:~/>>>
|
|
continuation_prompt = >
|
|
|
|
quiet = False
|
|
timing = False
|
|
colors = True
|
|
debug = False
|
|
|
|
abbrev = False
|
|
autorun_on_edit = False
|
|
echo = False
|
|
editor = vim
|
|
feedback_to_output = False
|
|
locals_in_py = True
|
|
|
|
Exit Code
|
|
=========
|
|
|
|
Following exit codes are returned by cephfs shell
|
|
|
|
+-----------------------------------------------+-----------+
|
|
| Error Type | Exit Code |
|
|
+===============================================+===========+
|
|
| Miscellaneous | 1 |
|
|
+-----------------------------------------------+-----------+
|
|
| Keyboard Interrupt | 2 |
|
|
+-----------------------------------------------+-----------+
|
|
| Operation not permitted | 3 |
|
|
+-----------------------------------------------+-----------+
|
|
| Permission denied | 4 |
|
|
+-----------------------------------------------+-----------+
|
|
| No such file or directory | 5 |
|
|
+-----------------------------------------------+-----------+
|
|
| I/O error | 6 |
|
|
+-----------------------------------------------+-----------+
|
|
| No space left on device | 7 |
|
|
+-----------------------------------------------+-----------+
|
|
| File exists | 8 |
|
|
+-----------------------------------------------+-----------+
|
|
| No data available | 9 |
|
|
+-----------------------------------------------+-----------+
|
|
| Invalid argument | 10 |
|
|
+-----------------------------------------------+-----------+
|
|
| Operation not supported on transport endpoint | 11 |
|
|
+-----------------------------------------------+-----------+
|
|
| Range error | 12 |
|
|
+-----------------------------------------------+-----------+
|
|
| Operation would block | 13 |
|
|
+-----------------------------------------------+-----------+
|
|
| Directory not empty | 14 |
|
|
+-----------------------------------------------+-----------+
|
|
| Not a directory | 15 |
|
|
+-----------------------------------------------+-----------+
|
|
| Disk quota exceeded | 16 |
|
|
+-----------------------------------------------+-----------+
|
|
| Broken pipe | 17 |
|
|
+-----------------------------------------------+-----------+
|
|
| Cannot send after transport endpoint shutdown | 18 |
|
|
+-----------------------------------------------+-----------+
|
|
| Connection aborted | 19 |
|
|
+-----------------------------------------------+-----------+
|
|
| Connection refused | 20 |
|
|
+-----------------------------------------------+-----------+
|
|
| Connection reset | 21 |
|
|
+-----------------------------------------------+-----------+
|
|
| Interrupted function call | 22 |
|
|
+-----------------------------------------------+-----------+
|
|
|
|
Files
|
|
=====
|
|
|
|
``~/.cephfs-shell.conf``
|