{"id":3685,"date":"2022-12-20T17:19:46","date_gmt":"2022-12-20T20:19:46","guid":{"rendered":"http:\/\/lode.uno\/linux-man\/index.php\/2022\/12\/20\/rmt-man8-2\/"},"modified":"2022-12-20T17:19:46","modified_gmt":"2022-12-20T20:19:46","slug":"rmt-man8-2","status":"publish","type":"post","link":"https:\/\/lode.uno\/linux-man\/2022\/12\/20\/rmt-man8-2\/","title":{"rendered":"RMT (man8)"},"content":{"rendered":"

RMT<\/h1>\n

NAME<\/a>
SYNOPSIS<\/a>
DESCRIPTION<\/a>
COMMANDS<\/a>
SEE ALSO<\/a>
BUGS<\/a>
BUG REPORTS<\/a>
HISTORY<\/a>
COPYRIGHT<\/a> <\/p>\n

\n

NAME <\/a> <\/h2>\n

rmt \u2212 remote magnetic tape server<\/p>\n

SYNOPSIS <\/a> <\/h2>\n

rmt<\/b><\/p>\n

DESCRIPTION <\/a> <\/h2>\n

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

The calling program communicates with rmt<\/b> 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<\/b> returns<\/p>\n

A<\/b>number<\/i>n<\/b><\/p>\n

where number<\/i> is an ASCII representation of a decimal return code. Additional data are returned after this line. On error, the following response is returned:<\/p>\n

E<\/b>errno<\/i>n<\/b>error-message<\/i>n<\/b><\/p>\n

where errno<\/i> is one of the system error codes, as described in errno<\/b>(3), and error-message<\/i> is a one-line human-readable description of the error, as printed by perror<\/b>(3).<\/p>\n

Available commands and possible responses are discussed in detail in the subsequent section.<\/p>\n

COMMANDS <\/a> <\/h2>\n

O<\/b>device<\/i>n<\/b>flags<\/i>n<\/b><\/p>\n

Opens the device<\/i> with given flags<\/i>. If a device had already been opened, it is closed before opening the new one.<\/p>\n

Arguments<\/b><\/p>\n\n\n\n
<\/td>\n\n

device<\/i><\/p>\n<\/td>\n

<\/td>\n\n

The name of the device to open.<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

flags<\/i><\/p>\n<\/td>\n

<\/td>\n\n

Flags for open<\/b>(2): a decimal number, or any valid O_*<\/b> constant from fcntl.h<\/b> (the initial O_<\/b> may be omitted), or a bitwise or (using |<\/b>) of any number of these, e.g.:<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

576
64|512
CREAT|TRUNC<\/p>\n

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.<\/p>\n

Reply<\/b><\/p>\n

A0n<\/b> on success.<\/p>\n

Extensions<\/b><\/p>\n

BSD version allows only decimal number as flags<\/i>.<\/p>\n

C<\/b>[device<\/i>]n<\/b><\/p>\n

Close the currently open device.
Arguments<\/b><\/p>\n

Any arguments are silently ignored.<\/p>\n\n\n
<\/td>\n\n

Reply<\/b><\/p>\n<\/td>\n

<\/td>\n\n

A0n<\/b> on success.<\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

L<\/b>whence<\/i>n<\/b>offset<\/i>n<\/b><\/p>\n

Performs an lseek<\/b>(2) on the currently open device with the specified parameters.
Arguments<\/b><\/p>\n\n\n
<\/td>\n\n

whence<\/i><\/p>\n<\/td>\n

<\/td>\n\n

Where to measure offset from. Valid values are:<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

0, SET, SEEK_SET seek from the file beginning<\/p>\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n\n

1, CUR, SEEK_CUR<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n<\/td>\n\n

seek from the current location<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n<\/td>\n\n

2, END, SEEK_END<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n<\/td>\n\n

seek from the file end<\/p>\n<\/td>\n<\/tr>\n<\/table>\n\n\n
<\/td>\n\n

Reply<\/b><\/p>\n<\/td>\n

<\/td>\n\n

A<\/b>offset<\/i>n<\/b> on success. The offset<\/i> is the new offset in file.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

Extensions<\/b><\/p>\n

BSD version allows only 0,1,2 as whence<\/i>.<\/p>\n

R<\/b>count<\/i>n<\/b><\/p>\n

Read count<\/i> bytes of data from the current device.
Arguments<\/b><\/p>\n\n\n\n
<\/td>\n\n

count<\/i><\/p>\n<\/td>\n

<\/td>\n\n

number of bytes to read.<\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n
<\/td>\n\n

Reply<\/b><\/p>\n<\/td>\n

<\/td>\n<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

On success:<\/p>\n

A<\/b>rdcount<\/i>n<\/b><\/p>\n

followed by rdcount<\/i> bytes of data read from the device.<\/p>\n

W<\/b>count<\/i>n<\/b><\/p>\n

Writes data onto the current device. The command is followed by count<\/i> bytes of input data.
Arguments<\/b><\/p>\n\n\n\n
<\/td>\n\n

count<\/i><\/p>\n<\/td>\n

<\/td>\n\n

Number of bytes to write.<\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n
<\/td>\n\n

Reply<\/b><\/p>\n<\/td>\n

<\/td>\n<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

On success: A<\/b>wrcount<\/i>n<\/b>, where wrcount<\/i> is the number of bytes actually written.<\/p>\n

I<\/b>opcode<\/i>n<\/b>count<\/i>n<\/b><\/p>\n

Perform a MTIOCOP ioctl<\/b>(2) command with the specified paramedters.
Arguments<\/b><\/p>\n\n\n\n\n
<\/td>\n\n

opcode<\/i><\/p>\n<\/td>\n

<\/td>\n\n

MTIOCOP<\/b> operation code.<\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n
<\/td>\n\n

count<\/i><\/p>\n<\/td>\n

<\/td>\n\n

mt_count.<\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n
<\/td>\n\n

Reply<\/b><\/p>\n<\/td>\n

<\/td>\n<\/td>\n <\/td>\n<\/tr>\n<\/table>\n

On success: A0n<\/b>.<\/p>\n\n\n
<\/td>\n\n

Sn<\/b><\/p>\n<\/td>\n

<\/td>\n\n

Returns the status of the currently open device, as obtained from a MTIOCGET ioctl<\/b>(2) call.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

Arguments<\/b><\/p>\n

None<\/p>\n\n\n
<\/td>\n\n

Reply<\/b><\/p>\n<\/td>\n

<\/td>\n\n

On success: A<\/b>count<\/i>n<\/b> followed by count<\/i> bytes of data.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

SEE ALSO <\/a> <\/h2>\n

tar<\/b>(1).<\/p>\n

BUGS <\/a> <\/h2>\n

Using this utility as a general-purpose remote file access tool is discouraged.<\/p>\n

BUG REPORTS <\/a> <\/h2>\n

Report bugs to .<\/p>\n

HISTORY <\/a> <\/h2>\n

The rmt<\/b> command appeared in 4.2BSD. The GNU rmt<\/b> is written from scratch, using the BSD specification.<\/p>\n

COPYRIGHT <\/a> <\/h2>\n

Copyright \u00a9 2013, 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.<\/p>\n

\n","protected":false},"excerpt":{"rendered":"

rmt \u2212 remote magnetic tape server <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[5,52,4,797],"class_list":["post-3685","post","type-post","status-publish","format-standard","hentry","category-8-administracion-del-sistema","tag-5","tag-administracion","tag-man8","tag-rmt-tar"],"gutentor_comment":0,"_links":{"self":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/3685","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/comments?post=3685"}],"version-history":[{"count":0,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/3685\/revisions"}],"wp:attachment":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/media?parent=3685"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/categories?post=3685"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/tags?post=3685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}