from small one page howto to huge articles all in one place
 

search text in:





Poll
Which linux distribution do you use?







poll results

Last additions:
using iotop to find disk usage hogs

using iotop to find disk usage hogs

words:

887

views:

102561

userrating:

average rating: 1.7 (85 votes) (1=very good 6=terrible)


May 25th. 2007:
Words

486

Views

217276

why adblockers are bad


Workaround and fixes for the current Core Dump Handling vulnerability affected kernels

Workaround and fixes for the current Core Dump Handling vulnerability affected kernels

words:

161

views:

98004

userrating:

average rating: 1.3 (28 votes) (1=very good 6=terrible)


April, 26th. 2006:

Druckversion
You are here: manpages





RMT

Section: GNU TAR Manual (1)
Updated: January 27, 2014
Index Return to Main Contents
 

NAME

rmt - remote magnetic tape server  

SYNOPSIS

rmt  

DESCRIPTION

Rmt provides remote access to files and devices for tar(1), cpio(1), and similar backup utilities. It is normally called by running rsh(1) or ssh(1) to the remote machine, optionally using a different login name if one is supplied.

The calling program communicates with rmt by sending requests on its standard input and reading replies from the standard output. A request consists of a request letter followed by an argument (if required) and a newline character. Additional data, if any, are sent after the newline. On success, rmt returns

Anumber\n

where number is an ASCII representation of a decimal return code. Additional data are returned after this line. On error, the following response is returned:

Eerrno\nerror-message\n

where errno is one of the system error codes, as described in errno(3), and error-message is a one-line human-readable description of the error, as printed by perror(3).

Available commands and possible responses are discussed in detail in the subsequent section.  

COMMANDS

Odevice\nflags\n
Opens the device with given flags. If a device had already been opened, it is closed before opening the new one.

Arguments

device
The name of the device to open.
flags
Flags for open(2): a decimal number, or any valid O_* constant from fcntl.h (the initial O_ may be omitted), or a bitwise or (using |) of any number of these, e.g.: 576 64|512 CREAT|TRUNC
In addition, a combined form is also allowed, i.e. a decimal mode followed by its symbolic representation. In this case the symbolic representation is given preference.

Reply

A0\n on success.

Extensions

BSD version allows only decimal number as flags.
C[device]\n
Close the currently open device.
Arguments

Any arguments are silently ignored.
Reply

A0\n on success.
Lwhence\noffset\n
Performs an lseek(2) on the currently open device with the specified parameters.
Arguments
whence
Where to measure offset from. Valid values are:


 0, SET, SEEK_SET   seek from the file beginning
 1, CUR, SEEK_CUR   seek from the current location
 2, END, SEEK_END   seek from the file end
Reply

Aoffset\n on success. The offset is the new offset in file.
Extensions
BSD version allows only 0,1,2 as whence.
Rcount\n

Read count bytes of data from the current device.
Arguments
count
number of bytes to read.
Reply

On success:

Ardcount\n

followed by rdcount bytes of data read from the device.

Wcount\n
Writes data onto the current device. The command is followed by count bytes of input data.
Arguments
count
Number of bytes to write.
Reply

On success: Awrcount\n, where wrcount is the number of bytes actually written.
Iopcode\ncount\n
Perform a MTIOCOP ioctl(2) command with the specified paramedters.
Arguments
opcode
MTIOCOP operation code.
count
mt_count.
Reply

On success: A0\n.
S\n
Returns the status of the currently open device, as obtained from a MTIOCGET ioctl(2) call.
Arguments

None
Reply

On success: Acount\n followed by count bytes of data.
 

SEE ALSO

tar(1).  

BUGS

Using this utility as a general-purpose remote file access tool is discouraged.  

BUG REPORTS

Report bugs to <bug-tar@gnu.org>.  

HISTORY

The rmt command appeared in 4.2BSD. The GNU rmt is written from scratch, using the BSD specification.  

COPYRIGHT

Copyright © 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.


 

Index

NAME
SYNOPSIS
DESCRIPTION
COMMANDS
SEE ALSO
BUGS
BUG REPORTS
HISTORY
COPYRIGHT


Please read "Why adblockers are bad".



Other free services
toURL.org
Shorten long
URLs to short
links like
http://tourl.org/2
tourl.org
.
Reverse DNS lookup
Find out which hostname(s)
resolve to a
given IP or other hostnames for the server
www.reversednslookup.org
rdf newsfeed | rss newsfeed | Atom newsfeed
- Powered by LeopardCMS - Running on Gentoo -
Copyright 2004-2017 Sascha Nitsch Unternehmensberatung UG(haftungsbeschränkt)
Valid XHTML1.1 : Valid CSS : buttonmaker
- Level Triple-A Conformance to Web Content Accessibility Guidelines 1.0 -
- Copyright and legal notices -
Time to create this page: 12.3 ms