Commands

Commands

ftp

[-v] [-d] [-i] [-n] [-g] [host]

The ftp command is used to transfer files between two network sites. It is an implementation of the Arpanet File Transfer Protocol. The command is interactive; the options listed next may be specified either on the command line or at the ftp prompt.

Example: To transfer the file test.txt from the local host (odin) to the remote host (fenris), use

ftp fenris

ftp>put test.txt

To abort a file transfer, use the terminal interrupt key (typically <Ctrl>-C).

-v	Run in verbose operation. Show all responses from the remote server.
-n	Do not attempt to log in automatically upon making initial connection. Without this option, ftp will check the user's ~/.netrc file for information about the account on the remote machine and use that information to log in. If there is no entry in the ~/.netrc file for the current machine, ftp will prompt the user for login information as appropriate.
-i	Disable interactive prompting when performing multiple file transfers.
-d	Run in debug mode.
-g	Disable file name globbing.
host	The client machine with which ftp is to connect.

The ftp program is interactive. The following commands are valid at the "ftp>" prompt.

! [command [args]]	Execute an interactive shell on the local machine. The first argument to ! is taken as a command to be executed; any successive arguments are taken as arguments to the first command.
$macro-name [args]	Execute the specified macro. Macros are defined with the macdef command. Any arguments are passed unglobbed.
account [passwd]	Supply login information (account & password) for access to a remote system.
appendlocal-file [remote-file]	Append the local-file to the remote-file.
ascii	Set file transfer type to network ASCII (default mode).
bell	Sound a bell after each transfer completed.
binary	Set file transfer type to binary.
bye	Close any connections and exit ftp.
case	Convert filenames to lowercase letters when transferring to the local machine.
cdremote-directory	Change to the specified directory on the remote machine.
cdup	Change to the parent directory of whatever the current directory is on the remote machine.
chmodmode file-name	Change the file permissions on the remote system as specified.
close	Close the FTP session with the remote host, but do not exit FTP.
cr	Toggle carriage return stripping during ASCII-type file retrieval. The default is to strip carriage returns to conform with UNIX standards.
deleteremote-file	Delete the specified file on the remote machine.
debug[debug-value]	Specify a debug level.
dir[remote-directory] [local-file]	Display a list of the contents of the specified remote directory or information about the specified file. If a local-file argument is specified, the listed files will be sent there.
disconnect	It is the same as close.
form format	Set the file transfer form to format.
getremote-file [local-file]	Transfer the specified file from the remote machine to the local machine.
glob	Toggle filename expansion for mdelete, mget, and mput.
hash	Toggle hash-sign ("#") printing for each 1024-byte data block transferred. The size of a data block is 1024 bytes.
help[command]	Display help information for the specified command.
idle[seconds]	Set the idle timer on the remote machine to the specified number of seconds.
lcd[directory]	Change directory on the local machine.
ls[remote-directory] [local-file]	Display a list of the contents of the specified remote directory or information about the specified file.
macdefmacro-name	Define a macro. The subsequent lines make up the content of the macro; end the macro definition by entering a null line.
mdelete[remote-files]	Delete the specified files on the remote machine.
mdirremote-files local-file	Same as dir, except that multiple remote files may be specified.
mgetremote-files	Get the specified files from the remote machine.
mkdirdirectory-name	Create a directory on the remote machine.
mlsremote-files local-file	Display a list of files on the remote machine. There may be more than one remote file specified, and the local file argument (to which the listing is sent) is mandatory.
mode[mode-name]	Specify the file transfer mode. The default is "stream".
modtimefile-name	Display the most recent modification time of the specified remote file.
mputlocal-files	Transfer each file specified to the remote machine.
newerfile-name [local-file]	Retrieve the specified file if the modification time is more recent than the copy on the local machine.
nlist[remote-directory] [local-file]	Display the files in the specified remote directory. If a local-file is specified, output from this command will be sent to it rather than the screen.
nmap[inpattern outpattern]	Toggle the file mapping mechanism. If inpattern and outpattern are specified, files are automatically renamed during transfer according to the specified mapping pattern.
ntrans[inchars [outchars]]	Toggle filename character translation. If a character mapping is specified, file name characters will be automatically translated as specified during file transfers.
openhost [port]	Connect to the specified host ftp server.
prompt	Toggle interactive prompting during multiple file transfers.
proxyftp-command	Execute an ftp command on a secondary control connection. This command allows simultaneous connection to two remote ftp servers for transferring files between the two servers.
putlocal-file [remote-file]	Transfer a local file to the remote machine.
pwd	Display the current working directory on the remote machine.
quit	This is equivalent to bye.
quotearg1 arg2 ...	Sends the specified arguments, verbatim, to the remote FTP server.
recvremote-file [local-file]	Equivalent to get.
reget remote-file [local-file]	Similar to get, but if local file exists and is smaller than the remote file, it is presumed to be an incomplete transfer. Transfer is continued from the apparent point of failure.
remotehelp[command-name]	Get help from the remote FTP server on the specified command.
remotestatus[file-name]	Display status of the remote machine or the specified file on the remote machine.
rename[from] [to]	Rename a file on the remote machine as specified.
reset	Clear the reply queue.
restartmarker	Restart the immediately following get or put at the indicated marker.
rmdirdirectory-name	Delete the specified directory on the remote machine.
runique	Toggle storing of files on the local system with unique filenames. If the target file of a transfer already exists and unique mode is set, the file will not be overwritten. Instead, a new file with the same base name, but a ".1" extension is appended to the filename (or ".2", or ".3", , ".99").
Sendlocal-file[remote-file]	This is equivalent to put.
sendport	Toggle the use of PORT commands.
Sitearg1 arg2 ...	The specified arguments are sent (verbatim) to the remote ftp server as a SITE command.
Sizefile-name	Display the size of the specified file on remote machine.
status	Show the current status of ftp.
struct[struct-name]	Set the file transfer structure to struct-name. By default "stream" structure is used.
sunique	Toggle storing of files on remote machine under unique file names (see runique).
system	Display operating system information for the remote host.
tenex	Set file transfer type such that TENEX machines can be communicated with.
trace	Toggle packet tracing.
type[type-name]	Set file transfer type as specified. The default is network ASCII.
umask[newmask]	Set the default umask on the remote server as specified.
Useruser-name [password] [account]	Send your user information to the remote ftp server.
verbose	Toggle verbose mode.
?[command]	Equivalent to help.

hostname

[NAME]

Display or set the hostname of the local machine.

Example: To display the host name of the local machine:

hostname

--help	Display help information.
--version	Display version information.

netstat

[-venaoc] [--tcp|-t] [--udp|-u] [--raw|-w] [--unix|-u] [--inet|--ip] [--ax25] [--ipx] [--netrom]

netstat

[-veenc] [--inet] [--ipx] [--netrom] [--ddp] [--ax25] {--route|-r}

netstat

[-veenac] {--interfaces|-i} [iface]

netstat

[-enc] {--masquerade|-M}

netstat

[-cn] {--netlink|- N}

netstat

{-V|--version} {-h|--help}

This command displays information (network connections, routing tables, interface statistics, masquerade connections, and netlink messages) about the local network.

Example: To display information about the network status, use

netstat

Example: To see whether your routing table contains a route to the net, use

netstat -nr | grep '192.249.100'

Modes

-r, --route	Display kernel routing tables.
-i, --interface iface	Display all (or only the specified) network interfaces.
-M, --masquerade	Display a list of all masqueraded sessions.

 

Use -M in conjunction with -e option for sequence numbering and deltas caused by data rewrites on ftp sessions.

 

-N, --netlink

Get information about creation or deletion of interfaces or routes.

Options

-v, --verbose	Display verbose operation.
-n, --numeric	Display numeric addresses rather than attempting to resolve them into symbolic host, port, or user names.
-A, --af family	Set the address families as a comma separated list of keywords (inet, UNIX, ipx, ax25, netrom, ddp)
-c, --continous	Update the display every second until interrupted.

Output Description

*Active Internet connections (TCP, UDP, RAW)

Proto	The protocol (tcp, udp, raw) used by the socket.
Recv-Q	The count of bytes not copied by the user program connected to this socket.
Send-Q	The count of bytes not acknowledged by the remote host.
Local Address	Local address (hostname) and port number of the socket.
Foreign Address	Remote address (hostname) and port number of the socket.
State	Display the state of the socket.
ESTABLISHED	The socket has an established connection.
SYN_SENT	The socket is actively attempting to establish a connection.
SYN_RECV	The connection is being initialized.
FIN_WAIT1	The socket is closed, and the connection is shutting down.
FIN_WAIT2	Connection is closed, and the socket is waiting for a shutdown from the remote end.
TIME_WAIT	The socket is waiting after close for remote shutdown retransmission.
CLOSED	The socket is not being used.
CLOSE_WAIT	The remote end has shut down, waiting for the socket to close.
LAST_ACK	The remote end has shut down, and the socket is closed. Waiting for acknowledgment.
LISTEN	The socket is listening for incoming connections.
CLOSING	Both sockets are shut down, but we still haven't sent all our data.
UNKNOWN	The state of the socket is unknown.
User	The name or the UID of the owner of the socket.
Proto	The protocol (usually UNIX) used by the socket.
RefCnt	Display the reference count (i.e., attached processes via this socket).
Flags	The flags displayed are SO_ACCEPTON (displayed as ACC), SO_WAITDATA (W) or SO_NOSPACE (N).
Type	There are several types of socket access:
SOCK_DGRAM	The socket is used in Datagram (connectionless) mode.
SOCK_STREAM	This is a stream (connection) socket.
SOCK_RAW	This is a raw socket.
SOCK_RDM	This socket is used to send reliably delivered messages.
SOCK_SEQPACKET	This is a sequential packet socket.
SOCK_PACKET	This is a RAW interface access socket.
State	Use state with one of the following:
FREE	Socket is unallocated.
LISTENING	Socket is listening for a connection request.
CONNECTING	Socket is about to establish a connection.
CONNECTED	The socket is connected.
DISCONNECTING	The socket is disconnecting.
(empty)	The socket is not connected to another one.
UNKNOWN	This state should never happen.
Path	Path name if the corresponding processes are attached to the socket.

ping

[-dfnqrvR] [-c count] [-i wait] [-l preload] [-p pattern] [-s packetsize]

To ping is to request acknowledgment from a remote host. Terminate ping with <Ctrl>C.

Example: To check the network connection between your computer and the remote host fenris, use

ping fenris

Use this command to see if there is a valid network connection between your computer and another on the network.

 

-ccount	Stop after the specified number of packets have been received.
-d	Set the SO_DEBUG option on the socket being used.
-f	We use this command to flood ping. Outputs packets as fast as they come back or one hundred times per second, whichever is more.
-iwait	Wait the specified number of seconds between packets.
-lpreload	Send the specified number of packets as fast as possible, then return to normal operation.
-n	Numeric output. Do not resolve addresses into host names.
-ppattern	Pattern is a sequence of up to 16 bytes used to fill out the packet sent.

 

Use the -p option for diagnosing data-dependent network problems.

 

-q	Quiet operation. Output summary information only.
-R	Record route.
-r	Bypass normal routing and send directly to a host on an attached network.
-s packetsize	Specify the size of the data packets to be transmitted.
-v	Display verbose output.

 

When setting up a network or debugging network problems, it's a good idea to ping yourself first to make sure everything is working correctly on your end.

 

rarp

[-V] [--version] [-h] [--help]

rarp

-a

rarp

[-v] -d hostname

rarp

[-v] [-t type] -s hostname hw_addr

This command is used to access and manipulate the system's reverse address resolution protocol (RARP) table. The RARP is a system for converting a physical network address into an IP address.

Example: To list the RARP table entries, use

rarp -a

-V	Display version information.
-v	Verbose operation.
-t type	Tell RARP which class of entries (ether, ax25, netrom) to look for when setting or reading the rarp table.
-a, --list	List the RARP table entries.
-dhostname, --deletehostname	Delete the specified host from the table.
-shostname hw_addr,--sethostname hw_addr	Create an entry in the RARP table for the specified host.

rcp

[-px] [-k realm] file1 file2

rcp

[-px] [-r] [-k realm] file directory

Copy a file between two machines on the same network.

Example: To copy the file test.txt from the local host to the directory /tmp on the remote machine fenris, use

rcp test.txt fenris:/tmp

-r	Recursively copy any subdirectories found under the source to the destination.
-p	Attempt to preserve modification times when transferring source files.
-krealm	Attempt to obtain tickets for the remote host in the specified realm rather than the remote host's realm as determined by krb_realmofhost.
-x	Do DES encryption for all data passed by rcp.

rdate

[-p] [-s] [host ]

Get date and time from the specified host via the network.

Example: To get date information from the remote host fenris, use

rdate fenris

-p	Print the date and time (default).
-s	Set local date and time based on the data obtained.

rdist

[ -DFn ] [ -A num ] [ -a num ] [ -d var=value ] [ -l <local logopts> ] [ -L <remote logopts> ] [ -f distfile ] [ -M maxproc ] [ -m host ] [ -o distopts ] [ -t timeout ] [ -p <rdistd-path> ] [ -P <rsh-path> ] [ name ]

rdist

-DFn -c name [login@]host[:dest]

rdist

-Server

rdist

-V

This program is used to maintain identical copies of files over multiple hosts. It preserves file data (owner, group, mode, mtime). It reads commands from distfile to direct the updating of files and/or directories. The distfile may be specified on the command line (standard output = "-"), or may be one of "distfile" or "Distfile".

-c	Interpret any remaining arguments as a distfile.
-Server	Attempt to function in server mode.
-Anum	Specify the minimum number of free files that must exist on a filesystem in order for rdist to update or install a file.
-abytes	Specify the minimum amount of free space (bytes) in a filesystem that must exist for rdist to update or install a file.
-D	Run in debug mode.
-dvar=value	Override the value of var specified in the distfile.
-F	Do not fork any child rdist processes (effectively, update all clients in sequence).
-fdistfile	Specify the distfile to be used. When distfile is specified as "-", read from standard input.
-llogopts	Specify local logging options.
-Llogopts	Specify remote logging options.
-Mnum	Specify an upper limit on the number of child processes to be run simultaneously.
-mmachine	Specify an upper limit on the number of machines to be updated.
-n	Display commands, but do not execute them.

 

Use rdist with -n option to debug your distfile.

 

-odistopts	Specify which dist options to enable. distopts is a comma separated list of options from the following set:
verify	Verify that the files are all up to date on all the hosts.
whole	Append the whole filename to the destination directory name.
noexec	Do not include executable files.
younger	Update files if their mtime and size disagree.
compare	Perform a binary comparison, updating files where they differ (as opposed to a time & date comparison).
follow	Follow symbolic links to copy files.
ignlnks	Ignore unresolved links.
chknfs	Do not check or update files that reside on NFS filesystems.
chkreadonly	If file resides on a readonly filesystem, do not attempt to update.
chksym	If target on remote host is a symbolic link, but is not on a master host, allow the remote host to remain a symbolic link. This may lead to unwanted results, but has been retained for compatibility with earlier versions.
quiet	Execute in quiet mode.
remove	Remove extraneous files (files that exist on remote host but not on master).
nochkowner	Do not check ownership of existing files.
nochkgroup	Do not check group ownership of existing files.
nochkmode	Do not check file and directory permission modes.
nodescend	Do not recursively descend into directories.
numchkgroup	Check group ownership via numeric group id, rather than name.
numchkowner	Check group ownership via numeric uid, rather than name.
savetargets	Save updated files, rather than removing them.

 

-p <rdistd-path>	Specify the path where the rdistd server is searched for on the target host.
-P <rsh-path>	Specify the path where the rsh command may be found.
-ttimeout	Specify an upper limit (in seconds) for how long to wait on responses from the rdist server.
-V	Display version information and exit.

Distfiles

Distfiles are of the following format:

<variable name> '=' <name list>

[ label: ] <source list> '->' <destination list> <command list>

[ label: ] <source list> '::' <time_stamp file> <command list>

rlogin

[-8EKLdx] [-e char] [-k realm] [-l username] host

Start a terminal session on the specified remote host.

Example: To remotely log in to the host fenris, use

rlogin fenris

-8	Permit an 8-bit input data path at all times.
-E	Do not allow the specified character to be recognized as an escape character.
-K	Disable Kerberos authentication.
-L	Permit the rlogin session to be run in litout mode.
-d	Enable socket debugging.
-e	Permit user specification of the escape character.
-k	Request rlogin to obtain tickets for the remote host in the specified realm, rather than the remote host's realm.
-x	Turn on DES encryption for all data passed via the rlogin session.

rsh

[-Kdnx] [-k realm] [-l username] host [command]

Execute a command on the specified host. Standard input, standard output, and standard error are swapped around, as you might expect.

Example: To invoke a shell on the remote host fenris, use

rsh fenris

-K	Disable kerberos authentication.
-d	Enable socket debugging.
-krealm	Get rsh to attempt to obtain tickets for the remote host in the specified realm, rather than the remote host's realm.
-l	Allow specification of a remote username. (Default is same as local username.)
-n	Redirect input from /dev/null. No, really.
-x	Enable DES encryption on all data transferred.

rusers

[-al] [host ]

Display a list of users logged in on the network.

Example: To display a list of all users currently logged in on the network and to include information on all the hosts on the network regardless of whether anyone is currently logged in (-a option), use

rusers -a

-a	Display all machines responding, even if no one is currently logged on.
-l	Display a long format listing (i.e., user name, host, tty, date & time of login, idle time, and any remote host information).

rwall

host [file]

Display a message to the terminal of all users currently logged in to the specified host. Message may be typed in interactively or may be specified in file.

Example: To display the message contained in the file urgent.txt to all the users currently logged in to the network host fenris, use

rwall fenris urgent.txt

rwho

[-a]

Display user and machine information for all users on the local network.

Example: To display user information for all users on the network, use

rwho

-a

Include all logged in users in output, regardless of idle time.

telnet

[-8ELadr] [-S tos] [-e escapechar] [-l user] [-n tracefile] [host [port]]

Interact with another machine over the network via the telnet protocol. Once you're logged in, network access is pretty much transparent. That is, you'd never know you were logged in across a network rather than directly wired to the machine.

Example: To set up a telnet (interactive network login) session with the remote host fenris, use

telnet fenris

-8	Specify 8-bit operation.
-E	Disable escape character.
-L	Use an 8-bit path on output.
-a	Attempt automatic login.
-d	Debug mode. May be interactively toggled back to nondebug mode.
-r	Emulate rlogin(1).
-Stos	Use the specified type-of-service.
-eescapechar	Specify the escape character.
-luser	Attempt to log in to the remote system as the specified user.
-ntracefile	Record trace information in the specified tracefile.
host	Specify the network host you wish to log in to.
port	Specify a port number or service name to contact (default = 23).

The telnet command is interactive. The following subcommands apply:

authargument ...	This command controls the TELNET AUTHENTICATE protocol option. The following arguments are valid:
disable type	Disable the specified type of authentication.
enable type	Enable the specified type of authentication.
status	List the current status of the various types of authentication.
close	Close connection to remote host and return to command mode.
displayargument...	Display the set and toggle value specified, or all, if none is specified.
encryptargument...	Control telnet encryption. Valid arguments are as follows:
disable type [input|output]	Disable specified type of encryption.
enable type [input|output]	Enable the specified type of encryption.
input	Same as "encrypt start input".
-input	Same as "encrypt stop input".
output	Same as "encrypt start output".
-output	Same as "encrypt stop output".
start [input|output]	Attempt to begin encryption.
status	Display current status of encryption module.
stop [input|output]	Stop encrypting.
authargument...	This command controls the TELNET AUTHENTICATE protocol option. The following arguments are valid:
environarguments...	Specify environment variables to be propagated across the telnet link. Valid arguments are as follows:
define variable value	Define variable as value.
undefine variable	Remove definition of variable.
export variable	Propagate specified variable to the remote host.
unexport variable	Do not propagate variable to remote host.
list	List the current set of environment variables. '*' indicates that variable is marked for propagation.
logout	Log out of remote host.
modetype	Specify connection mode (character, line, isig, edit, softtabs, litecho).
openhost[[-l]user][-port]	Open a connection to the specified host. Optionally, your user id on that host and the port number to be connected to may be specified.
quit	Close connections and exit telnet.

 

send arguments	Send one of the following telnet protocol character sequences to the remote host:
abort	Abort process.
ao	Abort output (flush all output to the user's terminal).
ayt	Send the "are you there" sequence.
brk	Break.
ec	Erase last character entered.
el	Erase current line.
eof	End of file.
eor	End of record.
escape	Send telnet escape character.
ga	Go ahead.
getstatus	Send current status (if supported).
ip	Interrupt current running process.
nop	Send the telnet "no operation" sequence.
susp	Suspend process.
synch	Synchronize. Remote system will disregard all typed, but unread input.
do cmd, dont cmd, will cmd, wont cmd	Send one of the TELNET DO cmd sequences as specified.
?	Display help information for the send command.
setargument value, unsetargument value	Set or unset the specified argument to value.
ayt	Send an "are you there" sequence to the specified host.
echo	Toggle between doing local echoing of entered characters and suppressing echoing of entered characters.
eof	Send eof to the remote system.
erase	Send a telnet erase character.
escape	Send telnet escape character "^[".
flushoutput	If telnet is in localchars mode and the flushoutput character is typed, a TELNET AO sequence (see send ao) is sent to the remote host.
forw1, forw2	When in LINEMODE, send partial lines to the remote system.
interrupt	If in localchars mode, send the TELNET IP sequence.
kill	Send a TELNET EL sequence if in LINEMODE.
lnext	If in LINEMODE, this is taken to be the lnext character.
quit	If in localchars mode, send the TELNET BRK sequence.
reprint	If in LINEMODE, this is taken to be the reprint character.
rlogin	Set the escape character.
start	If TELNET TOGGLE-FLOW-CONTROL option has been enabled, this will be taken to be the terminal's start character.
stop	If the TELNET TOGGLE-FLOW-CONTROL option has been enabled, this character is taken to be the terminal's stop character.
susp	If in localchars mode or LINEMODE is enabled, send a TELNET SUSP sequence.
tracefile	Specify file to which output caused by netdata or option tracing being TRUE will be written.
worderase	If operating in LINEMODE or line-by-line-mode, this character is taken as the terminal's worderase character.
?	Displays the legal set (unset) commands.
slcstate	Set Local Characters to the specified state when TELNET LINEMODE option has been enabled.
check	Verify the current settings for the current special characters.
export	Switch to the local defaults for the special characters.
import	Switch to the remote defaults for the special characters.
?	Prints out help information for the slc command.
status	Display current status of telnet.
togglearguments...	Toggle the specified argument(s) between true and false.
authdebug	Turns on debugging for the authentication code.
autodecrypt	When TRUE, automatically enable encryption/ decryption.
autologin	Attempt to use TELNET AUTHENTICATION to perform automatic authentication.
autosync	If autosynch and localchars are both TRUE, then when either the intr or quit characters are typed, the resulting telnet sequence sent is followed by the TELNET SYNCH sequence.
binary	Enable or disable the TELNET BINARY option on both input and output.
inbinary	Enable or disable the TELNET BINARY option on input.
outbinary	Enable or disable the TELNET BINARY option on output.
crlf	If this is TRUE, then carriage returns will be sent as <CR><LF>. If this is FALSE, then carriage returns will be send as <CR><NUL>.
crmod	Toggle carriage return mode.
debug	Toggles socket level debugging.
encdebug	Turns on debugging information for the encryption code.
localchars	If this is TRUE, then the flush, interrupt, quit, erase, and kill characters set (hopefully) appropriate TELNET control sequences.
options	Toggle the display of some internal telnet protocol processing.
prettydump	When the netdata toggle is enabled, if prettydump is enabled the output from the netdata command will be formatted in a more user-readable format.
skiprc	If true, do not read the .telnetrc file.
termdata	Toggles the display of all terminal data.
verbose_encrypt	When TRUE, display a message each time encryption is enabled or disabled.
?	Displays the legal toggle commands.
z	Suspend telnet.
! [command]	Execute a single command in a subshell on the local system.
? [command]	Display help information on the specified command.

tftp

[host]

This program is an implementation of the trivial file transfer protocol(Tftp). Tftp is used to transfer files to and from a remote machine. This command is interactive, and the following commands apply:

Example: To transfer the binary file "interest" across the network using the tftp protocol and place it in the current directory, use

tftp

tftp> binary

tftp> connect fenris

tftp> get /usr/bin/interest

? command-name ...	Display help information.
ascii	Transfer files in ASCII mode.
binary	Transfer files in binary mode.
connecthost-name [port]	Connect to the specified host (and, optionally, port) for file transfer.
getfilename, getremotename localname, getfile1 file2 ... fileN	Retrieve a copy of the specified files and place it on the local host.
modetransfer-mode	Set transfer mode. Allowable values are ASCII and binary.
putfile, putlocalfile remotefile, putfile1 file2 ... fileN remote-directory	Transfer a copy of the specified file(s) from the local host to the remote host.
quit	Exit tftp.
rexmtretransmission-timeout	Specify the per-packet retransmission timeout (seconds).
status	Show current status.
timeouttotal-transmission-timeout	Specify the total transmission timeout, in seconds.
trace	Toggle packet tracing.
verbose	Toggle verbose mode.