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+.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.35.
+.TH DF "1" "March 2007" "GNU coreutils 6.9" "User Commands"
+.SH NAME
+df \- report file system disk space usage
+.SH SYNOPSIS
+.B df
+[\fIOPTION\fR]... [\fIFILE\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 (which is always the root
+file system). 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 dummy file systems
+.TP
+\fB\-B\fR, \fB\-\-block\-size\fR=\fISIZE\fR
+use SIZE\-byte blocks
+.TP
+\fB\-h\fR, \fB\-\-human\-readable\fR
+print sizes in human readable format (e.g., 1K 234M 2G)
+.TP
+\fB\-H\fR, \fB\-\-si\fR
+likewise, but use powers of 1000 not 1024
+.TP
+\fB\-i\fR, \fB\-\-inodes\fR
+list inode information instead of block usage
+.TP
+\fB\-k\fR
+like \fB\-\-block\-size\fR=\fI1K\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\-P\fR, \fB\-\-portability\fR
+use the POSIX output format
+.TP
+\fB\-\-sync\fR
+invoke sync before getting usage info
+.TP
+\fB\-t\fR, \fB\-\-type\fR=\fITYPE\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=\fITYPE\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
+SIZE may be (or may be an integer optionally followed by) one of following:
+kB 1000, K 1024, MB 1000*1000, M 1024*1024, and so on for G, T, P, E, Z, Y.
+.SH AUTHOR
+Written by Torbjorn Granlund, David MacKenzie, and Paul Eggert.
+.SH "REPORTING BUGS"
+Report bugs to <bug\-coreutils@gnu.org>.
+.SH COPYRIGHT
+Copyright \(co 2007 Free Software Foundation, Inc.
+.br
+This is free software. You may redistribute copies of it under the terms of
+the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
+There is NO WARRANTY, to the extent permitted by law.
+.SH "SEE ALSO"
+The full documentation for
+.B df
+is maintained as a Texinfo manual. If the
+.B info
+and
+.B df
+programs are properly installed at your site, the command
+.IP
+.B info df
+.PP
+should give you access to the complete manual.