SMBCLIENT(1)SMBCLIENT(1)NAMEsmbclient - ftp-like Lan Manager client program
SYNOPSISsmbclient servicename [ password ] [ -A ] [ -E ] [ -L host ] [ -M host
] [ -I IP number ] [ -N ] [ -P ] [ -U username ] [ -d debuglevel ] [ -l
log basename ] [ -n netbios name ] [ -W workgroup ] [ -O socket options
] [ -p port number ] [ -c command string ] [ -T tar options ] [ -D
initial directory ]
DESCRIPTION
This program is part of the Samba suite.
smbclient is a client that can 'talk' to a Lan Manager server. It
offers an interface similar to that of the ftp program (see ftp(1)).
Operations include things like getting files from the server to the
local machine, putting files from the local machine to the server,
retrieving directory information from the server and so on.
OPTIONS
servicename
servicename is the name of the service you want to use on the
server. A service name takes the form \\server\service where server
is the netbios name of the Lan Manager server offering the desired
service and service is the name of the service offered. Thus to
connect to the service "printer" on the Lan Manager server "lanman",
you would use the servicename
\\lanman\printer
Note that the server name required is NOT necessarily the host name
of the server! The name required is a Lan Manager server name, which
may or may not be the same as the hostname of the machine running
the server.
password
password is the password required to access the specified service on
the specified server. If supplied, the -N option (suppress password
prompt) is assumed.
There is no default password. If no password is supplied on the
command line (either here or using the -U option (see below)) and -N
is not specified, the client will prompt for a password, even if the
desired service does not require one. (If no password is required,
simply press ENTER to provide a null password.)
Note: Some servers (including OS/2 and Windows for Workgroups)
insist on an uppercase password. Lowercase or mixed case passwords
may be rejected by these servers.
Be cautious about including passwords in scripts.
-A
This parameter, if specified, causes the maximum debug level to be
selected. Be warned that this generates prodigious amounts of debug
data. There is also a security issue involved, as at the maximum
debug level cleartext passwords may be written to some log files.
-L
This option allows you to look at what services are available on a
server. You use it as "smbclient -L host" and a list should appear.
The -I option may be useful if your netbios names don't match your
tcp/ip host names or if you are trying to reach a host on another
network. For example:
smbclient-L ftp -I ftp.microsoft.com
will list the shares available on Microsoft's public server.
-M
This options allows you to send messages, using the "WinPopup"
protocol, to another computer. Once a connection is established you
then type your message, pressing ^D (control-D) to end.
If the receiving computer is running WinPopup the user will receive
the message and probably a beep. If they are not running WinPopup
the message will be lost, and no error message will occur.
The message is also automatically truncated if the message is over
1600 bytes, as this is the limit of the protocol.
One useful trick is to cat the message through smbclient. For
example:
cat mymessage.txt | smbclient-M FRED
will send the message in the file "mymessage.txt" to the machine
FRED.
You may also find the -U and -I options useful, as they allow you to
control the FROM and TO parts of the message.
See the message command section of smb.conf(5) for a description of
how to handle incoming WinPopup messages in Samba.
Note: Copy WinPopup into the startup group on your WfWg PCs if you
want them to always be able to receive messages.
-E
This parameter, if specified, causes the client to write messages to
the standard error stream (stderr) rather than to the standard
output stream.
By default, the client writes messages to standard output -
typically the user's tty.
-I IP number
IP number represents the IP number of the server to connect to. It
should be specified in standard "a.b.c.d" notation.
Normally the client will attempt to locate the specified Lan Manager
server by looking it up - that is, broadcasting a request for the
given server to identify itself. Using this parameter will force the
client to assume that the server is on the machine with the
specified IP number.
There is no default for this parameter. If not supplied, it will be
determined automatically by the client as described above.
-N
If specified, this parameter suppresses the normal password prompt
from the client to the user. This is useful when accessing a service
that does not require a password.
Unless a password is specified on the command line or this parameter
is specified, the client will request a password.
-O socket options
See the socket options section of smb.conf(5) for details.
-P
If specified, the service requested will be connected to as a
printer service rather than as a normal filespace service.
Operations such as put and get will not be applicable for such a
connection.
By default, services will be connected to as NON-printer services.
-U username
username is the user name that will be used by the client to make a
connection, assuming your server is running a protocol that allows
for usernames.
Some servers are fussy about the case of this name, and some insist
that it must be a valid netbios name.
If no username is supplied, it will default to an uppercase version
of the environment variable USER or LOGNAME in that order. If no
username is supplied and neither environment variable exists the
user name will be empty.
If the service you are connecting to requires a password, it can be
supplied using the -U option, by appending a percent symbol ("%")
then the password to username. For example, to attach to a service
as user "fred" with password "secret", you would specify -U
fred%secret on the command line. Note that there are no spaces
around the percent symbol.
If you specify the password as part of username then the -N option
(suppress password prompt) is assumed.
If you specify the password as a parameter AND as part of username
then the password as part of username will take precedence. Putting
nothing before or nothing after the percent symbol will cause an
empty username or an empty password to be used, respectively.
Note: Some servers (including OS/2 and Windows for Workgroups)
insist on an uppercase password. Lowercase or mixed case passwords
may be rejected by these servers.
Be cautious about including passwords in scripts.
-d debuglevel
debuglevel is an integer from 0 to 5.
The default value if this parameter is not specified is zero.
The higher this value, the more detail will be logged to the log
files about the activities of the client. At level 0, only critical
errors and serious warnings will be logged. Level 1 is a reasonable
level for day to day running - it generates a small amount of
information about operations carried out.
Levels above 1 will generate considerable amounts of log data, and
should only be used when investigating a problem. Levels above 3 are
designed for use only by developers and generate HUGE amounts of log
data, most of which is extremely cryptic.
-l log basename
If specified, log basename specifies a base filename into which
operational data from the running client will be logged.
The default base name is specified at compile time.
The base name is used to generate actual log file names. For
example, if the name specified was "log", the following files would
be used for log data:
log.client.debug (containing debugging information)
log.client.in (containing inbound transaction data)
log.client.out (containing outbound transaction data)
The log files generated are never removed by the client.
-n netbios name
By default, the client will use the local machine's hostname (in
uppercase) as its netbios name. This parameter allows you to
override the host name and use whatever netbios name you wish.
-W workgroup
Override what workgroup is used for the connection. This may be
needed to connect to some servers.
-p port number
port number is a positive integer value.
The default value if this parameter is not specified is 139.
This number is the port number that will be used when making
connections to the server. The standard (well-known) port number for
the server is 139, hence the default.
This parameter is not normally specified.
-T tar options
where tar options consists of one or more of c, x, I, X, b, g, N or
a; used as:
smbclient \\server\share -TcxIXbgNa [ blocksize ] [ newer-file ]
tarfile [ filenames.... ]
c Create a tar file on UNIX. Must be followed by the name of a
tar file, tape device or "-" for standard output. (May be useful
to set debugging low (-d0)) to avoid corrupting your tar file if
using "-"). Mutually exclusive with the x flag.
x Extract (restore) a local tar file back to a share. Unless the
-D option is given, the tar files will be restored from the top
level of the share. Must be followed by the name of the tar file,
device or "-" for standard input. Mutually exclusive with the c
flag.
I Include files and directories. Is the default behaviour when
filenames are specified above. Causes tar files to be included in
an extract or create (and therefore everything else to be
excluded). See example below. Filename globbing does not work
for included files for extractions (yet).
X Exclude files and directories. Causes tar files to be excluded
from an extract or create. See example below. Filename globbing
does not work for excluded files (yet).
b Blocksize. Must be followed by a valid (greater than zero)
blocksize. Causes tar file to be written out in blocksize*TBLOCK
(usually 512 byte) blocks.
g Incremental. Only back up files that have the archive bit set.
Useful only with the c flag.
N Newer than. Must be followed by the name of a file whose date
is compared against files found on the share during a create.
Only files newer than the file specified are backed up to the tar
file. Useful only with the c flag.
a Set archive bit. Causes the archive bit to be reset when a file
is backed up. Useful with the g (and c) flags.
Examples
smbclient \\mypc\myshare "" -N -Tx backup.tar
Restore from tar file backup.tar into myshare on mypc (no
password on share).
smbclient \\mypc\myshare "" -N -TXx backup.tar users/docs
Restore everything except users/docs
smbclient \\mypc\myshare "" -N -Tc backup.tar users/docs
Create a tar file of the files beneath users/docs.
-D initial directory
Change to initial directory before starting. Probably only of any
use with the tar (-T) option.
-c command string
command string is a semicolon separated list of commands to be
executed instead of prompting from stdin. -N is implied by -c.
This is particularly useful in scripts and for printing stdin to the
server, e.g. -c 'print -'.
OPERATIONS
Once the client is running, the user is presented with a prompt, "smb:
\>". The backslash ("\") indicates the current working directory on
the server, and will change if the current working directory is
changed.
The prompt indicates that the client is ready and waiting to carry out
a user command. Each command is a single word, optionally followed by
parameters specific to that command. Command and parameters are space-
delimited unless these notes specifically state otherwise. All commands
are case-insensitive. Parameters to commands may or may not be case
sensitive, depending on the command.
You can specify file names which have spaces in them by quoting the
name with double quotes, for example "a long file name".
Parameters shown in square brackets (eg., "[parameter]") are optional.
If not given, the command will use suitable defaults. Parameters shown
in angle brackets (eg., "<parameter>") are required.
Note that all commands operating on the server are actually performed
by issuing a request to the server. Thus the behaviour may vary from
server to server, depending on how the server was implemented.
The commands available are given here in alphabetical order.
?
Parameters:
[command]
Description:
If command is specified, the ? command will display a brief
informative message about the specified command.
If no command is specified, a list of available commands will be
displayed.
!
Parameters:
[shell command]
Description:
If shell command is specified, the ! command will execute a
shell locally and run the specified shell command. If no command
is specified, a shell will be run.
cd
Parameters:
[directory name]
Description:
If directory name is specified, the current working directory on
the server will be changed to the directory specified. This
operation will fail if for any reason the specified directory is
inaccessible.
If no directory name is specified, the current working directory
on the server will be reported.
del
Parameters:
<mask>
Description:
The client will request that the server attempt to delete all
files matching mask from the current working directory on the
server.
dir
Parameters:
<mask>
Description:
A list of the files matching mask in the current working
directory on the server will be retrieved from the server and
displayed.
exit
Parameters:
None.
Description:
Terminate the connection with the server and exit from the
program.
get
Parameters:
<remote file name> [local file name]
Description:
Copy the file called remote file name from the server to the
machine running the client. If specified, name the local copy
local file name. Note that all transfers in smbclient are
binary. See also the lowercase command.
help
Parameters:
[command]
Description:
See the ? command above.
lcd
Parameters:
[directory name]
Description:
If directory name is specified, the current working directory on
the local machine will be changed to the directory specified.
This operation will fail if for any reason the specified
directory is inaccessible.
If no directory name is specified, the name of the current
working directory on the local machine will be reported.
lowercase
Parameters:
None.
Description:
Toggle lowercasing of filenames for the get and mget commands.
When lowercasing is toggled ON, local filenames are converted to
lowercase when using the get and mget commands. This is often
useful when copying (say) MSDOS files from a server, because
lowercase filenames are the norm on UNIX systems.
ls
Parameters:
<mask>
Description:
See the dir command above.
mask
Parameters:
<mask>
Description:
This command allows the user to set up a mask which will be used
during recursive operation of the mget and mput commands.
The masks specified to the mget and mput commands act as filters
for directories rather than files when recursion is toggled ON.
The mask specified with the mask command is necessary to filter
files within those directories. For example, if the mask
specified in an mget command is "source*" and the mask specified
with the mask command is "*.c" and recursion is toggled ON, the
mget command will retrieve all files matching "*.c" in all
directories below and including all directories matching
"source*" in the current working directory.
Note that the value for mask defaults to blank (equivalent to
"*") and remains so until the mask command is used to change it.
It retains the most recently specified value indefinitely. To
avoid unexpected results it would be wise to change the value of
mask back to "*" after using the mget or mput commands.
md
Parameters:
<directory name>
Description:
See the mkdir command.
mget
Parameters:
<mask>
Description:
Copy all files matching mask from the server to the machine
running the client.
Note that mask is interpreted differently during recursive
operation and non-recursive operation - refer to the recurse and
mask commands for more information. Note that all transfers in
smbclient are binary. See also the lowercase command.
mkdir
Parameters:
<directory name>
Description:
Create a new directory on the server (user access privileges
permitting) with the specified name.
mput
Parameters:
<mask>
Description:
Copy all files matching mask in the current working directory on
the local machine to the current working directory on the server.
Note that mask is interpreted differently during recursive
operation and non-recursive operation - refer to the recurse and
mask commands for more information. Note that all transfers in
smbclient are binary.
print
Parameters:
<file name>
Description:
Print the specified file from the local machine through a
printable service on the server.
See also the printmode command.
printmode
Parameters:
<graphics or text>
Description:
Set the print mode to suit either binary data (such as graphical
information) or text. Subsequent print commands will use the
currently set print mode.
prompt
Parameters:
None.
Description:
Toggle prompting for filenames during operation of the mget and
mput commands.
When toggled ON, the user will be prompted to confirm the
transfer of each file during these commands. When toggled OFF,
all specified files will be transferred without prompting.
put
Parameters:
<local file name> [remote file name]
Description:
Copy the file called local file name from the machine running the
client to the server. If specified, name the remote copy remote
file name. Note that all transfers in smbclient are binary. See
also the lowercase command.
queue
Parameters:
None.
Description:
Displays the print queue, showing the job id, name, size and
current status.
quit
Parameters:
None.
Description:
See the exit command.
rd
Parameters:
<directory name>
Description:
See the rmdir command.
recurse
Parameters:
None.
Description:
Toggle directory recursion for the commands mget and mput
When toggled ON, these commands will process all directories in
the source directory (ie., the directory they are copying from )
and will recurse into any that match the mask specified to the
command. Only files that match the mask specified using the mask
command will be retrieved. See also the mask command.
When recursion is toggled OFF, only files from the current
working directory on the source machine that match the mask
specified to the mget or mput commands will be copied, and any
mask specified using the mask command will be ignored.
rm
Parameters:
<mask>
Description:
Remove all files matching mask from the current working directory
on the server.
rmdir
Parameters:
<directory name>
Description:
Remove the specified directory (user access privileges
permitting) from the server.
tar
Parameters:
<c|x>[IXbgNa]
Description:
Performs a tar operation - see the -T command line option above.
Behaviour may be affected by the tarmode command (see below).
Using g (incremental) and N (newer) will affect tarmode settings.
Note that using the "-" option with tar x may not work - use the
command line option instead.
blocksize
Parameters
<blocksize>
Description
Blocksize. Must be followed by a valid (greater than zero)
blocksize. Causes tar file to be written out in blocksize*TBLOCK
(usually 512 byte) blocks.
tarmode
Parameters
<full|inc|reset|noreset>
Description
Changes tar's behaviour with regard to archive bits. In full
mode, tar will back up everything regardless of the archive bit
setting (this is the default mode). In incremental mode, tar will
only back up files with the archive bit set. In reset mode, tar
will reset the archive bit on all files it backs up (implies
read/write share).
setmode
Parameters
<filename> <perm=[+|-]rsha>
Description
A version of the DOS attrib command to set file permissions. For
example,
setmode myfile +r
would make myfile read only.
NOTES
Some servers are fussy about the case of supplied usernames, passwords,
share names (aka service names) and machine names. If you fail to
connect try giving all parameters in uppercase.
It is often necessary to use the -n option when connecting to some
types of servers. For example OS/2 LanManager insists on a valid
netbios name being used, so you need to supply a valid name that would
be known to the server.
smbclient supports long file names where the server supports the
LANMAN2 protocol.
FILES
Not applicable.
ENVIRONMENT VARIABLES
USER
The variable USER may contain the username of the person using the
client. This information is used only if the protocol level is high
enough to support session-level passwords.
INSTALLATION
The location of the client program is a matter for individual system
administrators. The following are thus suggestions only.
It is recommended that the client software be installed under the
/usr/local/samba hierarchy, in a directory readable by all, writeable
only by root. The client program itself should be executable by all.
The client should NOT be setuid or setgid!
The client log files should be put in a directory readable and writable
only by the user.
To test the client, you will need to know the name of a running Lan
manager server. It is possible to run smbd (see smbd(8)) as an ordinary
user - running that server as a daemon on a user-accessible port
(typically any port number over 1024) would provide a suitable test
server.
VERSION
This man page is (mostly) correct for version 1.9.00 of the Samba
suite, plus some of the recent patches to it. These notes will
necessarily lag behind development of the client software, so it is
possible that your version of the client has extensions or parameter
semantics that differ from or are not covered by this man page. Please
notify these to the address below for rectification.
SEE ALSOsmbd(8)DIAGNOSTICS
[This section under construction]
Most diagnostics issued by the client are logged in a specified log
file. The log file name is specified at compile time, but may be
overridden on the command line.
The number and nature of diagnostics available depends on the debug
level used by the client. If you have problems, set the debug level to
3 and peruse the log files.
Most messages are reasonably self-explanatory. Unfortunately, at time
of creation of this man page the source code is still too fluid to
warrant describing each and every diagnostic. At this stage your best
bet is still to grep the source code and inspect the conditions that
gave rise to the diagnostics you are seeing.
BUGS
None known.
CREDITS
The original Samba software and related utilities were created by
Andrew Tridgell (samba-bugs@samba.anu.edu.au). Andrew is also the
Keeper of the Source for this project.
See smb.conf(5) for a full list of contributors and details on how to
submit bug reports, comments etc.
smbclientsmbclientSMBCLIENT(1)
