df.1

来自「minix操作系统最新版本（3.1.1）的源代码」· 1 代码 · 共 76 行

.TH DF 1
.SH NAME
df \- report on free disk space
.SH SYNOPSIS
\fBdf\fP [\fB\-ikP\fP] [\fB\-t\fP \fItype\fP] [\fIfile\fP ...]
.SH DESCRIPTION
.B Df
lists the amount of free space on the currently mounted devices (no arguments),
or the devices given as arguments.  If the argument is not a device then the
device it resides on is listed.
.SH OPTIONS
Without options,
.B df
will give a listing like this:
.sp
.nf
.if t .ft C
Filesystem    1k-Blocks     free     used    %  FUsed%  Mounted on
/dev/c0d0p1s0      1440      635      805  56%    26%   /
/dev/c0d0p1s1     32768    32390      378   2%     1%   /tmp
/dev/c0d0p1s2    784657   517809   266848  35%    29%   /usr
.if t .ft R
.fi
.PP
The
.B \-i
option shifts the focus to the files:
.sp
.nf
.if t .ft C
Filesystem        Files     free     used    %  BUsed%  Mounted on
/dev/c0d0p1s0      1024      759      265  26%    56%   /
/dev/c0d0p1s1      5472     5468        4   1%     2%   /tmp
/dev/c0d0p1s2     65535    46734    18801  29%    35%   /usr
.if t .ft R
.fi
.PP
Option
.B \-P
makes
.B df
use \s-2POSIX\s+2 defined output in 512 byte units:
.sp
.nf
.if t .ft C
Filesystem     512-blocks    Used  Available  Capacity  Mounted on
/dev/c0d0p1s0      2880      1628     1252       57%    /
/dev/c0d0p1s1     65536       756    64780        2%    /tmp
/dev/c0d0p1s2   1569314    533748  1035566       35%    /usr
.if t .ft R
.fi
.PP
With
.B \-k
1024 byte units would be used.
.PP
The
.B \-t
option limits
.BR df 's
output to file systems of the given
.IR type .
.SH FILES
.TP 15n
.B /etc/mtab
List of mounted file systems.
.SH "SEE ALSO"
.BR du (1),
.BR fstab (5).
.SH BUGS
Default output should also be in 512 byte units says \s-2POSIX\s+2.
.SH AUTHOR
Kees J. Bot ([e-mail])
.\"
.\" $PchId: df.1,v 1.5 1998/07/27 19:48:47 philip Exp $