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.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.47.3. | ||
.TH DF "1" "February 2022" "GNU coreutils 8.32" "User Commands" | ||
.SH NAME | ||
df \- report file system disk space usage | ||
.SH SYNOPSIS | ||
.B df | ||
[\fI\,OPTION\/\fR]... [\fI\,FILE\/\fR]... | ||
.SH DESCRIPTION | ||
This manual page | ||
documents the GNU version of | ||
.BR df . | ||
.B df | ||
displays the amount of disk space available on the file system | ||
containing each file name argument. If no file name is given, the | ||
space available on all currently mounted file systems is shown. Disk | ||
space is shown in 1K blocks by default, unless the environment | ||
variable POSIXLY_CORRECT is set, in which case 512-byte blocks are | ||
used. | ||
.PP | ||
If an argument is the absolute file name of a disk device node containing a | ||
mounted file system, | ||
.B df | ||
shows the space available on that file system rather than on the | ||
file system containing the device node. This version of | ||
.B df | ||
cannot show the space available on unmounted file systems, because on | ||
most kinds of systems doing so requires very nonportable intimate | ||
knowledge of file system structures. | ||
.SH OPTIONS | ||
.PP | ||
Show information about the file system on which each FILE resides, | ||
or all file systems by default. | ||
.PP | ||
Mandatory arguments to long options are mandatory for short options too. | ||
.TP | ||
\fB\-a\fR, \fB\-\-all\fR | ||
include pseudo, duplicate, inaccessible file systems | ||
.TP | ||
\fB\-B\fR, \fB\-\-block\-size\fR=\fI\,SIZE\/\fR | ||
scale sizes by SIZE before printing them; e.g., | ||
\&'\-BM' prints sizes in units of 1,048,576 bytes; | ||
see SIZE format below | ||
.TP | ||
\fB\-h\fR, \fB\-\-human\-readable\fR | ||
print sizes in powers of 1024 (e.g., 1023M) | ||
.TP | ||
\fB\-H\fR, \fB\-\-si\fR | ||
print sizes in powers of 1000 (e.g., 1.1G) | ||
.TP | ||
\fB\-i\fR, \fB\-\-inodes\fR | ||
list inode information instead of block usage | ||
.TP | ||
\fB\-k\fR | ||
like \fB\-\-block\-size\fR=\fI\,1K\/\fR | ||
.TP | ||
\fB\-l\fR, \fB\-\-local\fR | ||
limit listing to local file systems | ||
.TP | ||
\fB\-\-no\-sync\fR | ||
do not invoke sync before getting usage info (default) | ||
.TP | ||
\fB\-\-output\fR[=\fI\,FIELD_LIST\/\fR] | ||
use the output format defined by FIELD_LIST, | ||
or print all fields if FIELD_LIST is omitted. | ||
.TP | ||
\fB\-P\fR, \fB\-\-portability\fR | ||
use the POSIX output format | ||
.TP | ||
\fB\-\-sync\fR | ||
invoke sync before getting usage info | ||
.TP | ||
\fB\-\-total\fR | ||
elide all entries insignificant to available space, | ||
and produce a grand total | ||
.TP | ||
\fB\-t\fR, \fB\-\-type\fR=\fI\,TYPE\/\fR | ||
limit listing to file systems of type TYPE | ||
.TP | ||
\fB\-T\fR, \fB\-\-print\-type\fR | ||
print file system type | ||
.TP | ||
\fB\-x\fR, \fB\-\-exclude\-type\fR=\fI\,TYPE\/\fR | ||
limit listing to file systems not of type TYPE | ||
.TP | ||
\fB\-v\fR | ||
(ignored) | ||
.TP | ||
\fB\-\-help\fR | ||
display this help and exit | ||
.TP | ||
\fB\-\-version\fR | ||
output version information and exit | ||
.PP | ||
Display values are in units of the first available SIZE from \fB\-\-block\-size\fR, | ||
and the DF_BLOCK_SIZE, BLOCK_SIZE and BLOCKSIZE environment variables. | ||
Otherwise, units default to 1024 bytes (or 512 if POSIXLY_CORRECT is set). | ||
.PP | ||
The SIZE argument is an integer and optional unit (example: 10K is 10*1024). | ||
Units are K,M,G,T,P,E,Z,Y (powers of 1024) or KB,MB,... (powers of 1000). | ||
Binary prefixes can be used, too: KiB=K, MiB=M, and so on. | ||
.PP | ||
FIELD_LIST is a comma\-separated list of columns to be included. Valid | ||
field names are: 'source', 'fstype', 'itotal', 'iused', 'iavail', 'ipcent', | ||
\&'size', 'used', 'avail', 'pcent', 'file' and 'target' (see info page). | ||
.SH AUTHOR | ||
Written by Torbjorn Granlund, David MacKenzie, and Paul Eggert. | ||
.SH "REPORTING BUGS" | ||
GNU coreutils online help: <https://www.gnu.org/software/coreutils/> | ||
.br | ||
Report any translation bugs to <https://translationproject.org/team/> | ||
.SH COPYRIGHT | ||
Copyright \(co 2020 Free Software Foundation, Inc. | ||
License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>. | ||
.br | ||
This is free software: you are free to change and redistribute it. | ||
There is NO WARRANTY, to the extent permitted by law. | ||
.SH "SEE ALSO" | ||
Full documentation <https://www.gnu.org/software/coreutils/df> | ||
.br | ||
or available locally via: info \(aq(coreutils) df invocation\(aq |
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.\" Man page generated from reStructuredText. | ||
. | ||
. | ||
.nr rst2man-indent-level 0 | ||
. | ||
.de1 rstReportMargin | ||
\\$1 \\n[an-margin] | ||
level \\n[rst2man-indent-level] | ||
level margin: \\n[rst2man-indent\\n[rst2man-indent-level]] | ||
- | ||
\\n[rst2man-indent0] | ||
\\n[rst2man-indent1] | ||
\\n[rst2man-indent2] | ||
.. | ||
.de1 INDENT | ||
.\" .rstReportMargin pre: | ||
. RS \\$1 | ||
. nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin] | ||
. nr rst2man-indent-level +1 | ||
.\" .rstReportMargin post: | ||
.. | ||
.de UNINDENT | ||
. RE | ||
.\" indent \\n[an-margin] | ||
.\" old: \\n[rst2man-indent\\n[rst2man-indent-level]] | ||
.nr rst2man-indent-level -1 | ||
.\" new: \\n[rst2man-indent\\n[rst2man-indent-level]] | ||
.in \\n[rst2man-indent\\n[rst2man-indent-level]]u | ||
.. | ||
.TH "RFCOMM" 1 "April 28, 2002" "BlueZ" "Linux System Administration" | ||
.SH NAME | ||
rfcomm \- RFCOMM configuration utility | ||
.SH SYNOPSIS | ||
.sp | ||
\fBrfcomm\fP [\fIOPTIONS\fP] <\fICOMMAND\fP> <\fIdev\fP> | ||
.SH DESCRIPTION | ||
.sp | ||
\fBrfcomm(1)\fP is used to set up, maintain, and inspect the RFCOMM configuration | ||
of the Bluetooth subsystem in the Linux kernel. If no \fBcommand\fP is given, | ||
or if the option \fB\-a\fP is used, \fBrfcomm\fP prints information about the | ||
configured RFCOMM devices. | ||
.SH OPTIONS | ||
.INDENT 0.0 | ||
.TP | ||
.B \-h | ||
Gives a list of possible commands. | ||
.TP | ||
.B \-a | ||
Prints information about all configured RFCOMM devices. | ||
.TP | ||
.B \-r | ||
Switch TTY into raw mode (doesn\(aqt work with "bind"). | ||
.UNINDENT | ||
.INDENT 0.0 | ||
.TP | ||
.B \-i <\fIhciX\fP> | <\fIbdaddr\fP> | ||
The command is applied to device \fIhciX\fP, which must be the name or the | ||
address of an installed Bluetooth device. If not specified, the command | ||
will be use the first available Bluetooth device. | ||
.UNINDENT | ||
.INDENT 0.0 | ||
.TP | ||
.B \-A | ||
Enable authentication | ||
.TP | ||
.B \-E | ||
Enable encryption | ||
.TP | ||
.B \-S | ||
Secure connection | ||
.TP | ||
.B \-C | ||
Become the central of a piconet | ||
.TP | ||
.BI \-L \ <seconds> | ||
Set linger timeout | ||
.UNINDENT | ||
.SH COMMANDS | ||
.INDENT 0.0 | ||
.TP | ||
.B show <\fIdev\fP> | ||
Display the information about the specified device. | ||
.TP | ||
.B connect <\fIdev\fP> [\fIbdaddr\fP] [\fIchannel\fP] | ||
Connect the RFCOMM device to the remote Bluetooth device on the specified | ||
channel. If no channel is specified, it will use the channel | ||
number \fB1\fP\&. This command can be terminated with the key sequence CTRL\-C. | ||
.TP | ||
.B listen <\fIdev\fP> [\fIchannel\fP] [\fIcmd\fP] | ||
Listen on a specified RFCOMM channel for incoming connections. If no | ||
channel is specified, it will use the channel number \fB1\fP, but a channel | ||
must be specified before cmd. If cmd is given, it will be executed as soon | ||
as a client connects. When the child process terminates or the client | ||
disconnect, the command will terminate. Occurrences of {} in cmd will be | ||
replaced by the name of the device used by the connection. This command | ||
can be terminated with the key sequence CTRL\-C. | ||
.TP | ||
.B watch <\fIdev\fP> [\fIchannel\fP] [\fIcmd\fP] | ||
Watch is identical to listen except that when the child process | ||
terminates or the client disconnect, the command will restart listening | ||
with the same parameters. | ||
.TP | ||
.B bind <\fIdev\fP> [\fIbdaddr\fP] [\fIchannel\fP] | ||
This binds the RFCOMM device to a remote Bluetooth device. The command | ||
does not establish a connection to the remote device, it only creates | ||
the binding. The connection will be established right after an application | ||
tries to open the RFCOMM device. If no channel number is specified, it | ||
uses the channel number \fB1\fP\&. | ||
.TP | ||
.B release <\fIdev\fP> | ||
This command releases a defined RFCOMM binding. | ||
.sp | ||
If \fBall\fP is specified for the RFCOMM device, then all bindings will be | ||
removed. | ||
.UNINDENT | ||
.SH RESOURCES | ||
.sp | ||
\fI\%http://www.bluez.org\fP | ||
.SH REPORTING BUGS | ||
.sp | ||
\fI\%linux\-bluetooth@vger.kernel.org\fP | ||
.SH AUTHOR | ||
Marcel Holtmann <marcel@holtmann.org> | ||
.SH COPYRIGHT | ||
Free use of this software is granted under ther terms of the GNU | ||
Lesser General Public Licenses (LGPL). | ||
.\" Generated by docutils manpage writer. | ||
. |
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