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名称

       df - 报告文件系统磁盘空间使用情况

概述

       df [选项列表]... [文件列表]...

描述

       This  manual  page  documents the GNU version of df.  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.

       If  an  argument is the absolute file name of a disk device node containing a mounted file
       system, df shows the space available on that file system rather than on  the  file  system
       containing  the  device  node.   This  version  of  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.

选项

       显示文件列表中每一个文件所在的文件系统的信息,没有指定文件则默认为整个文件系统。

       必选参数对长短选项同时适用。

       -a, --all
              包含伪(pseudo)、重复和无法访问的文件系统

       -B, --block-size=大小
              scale  sizes  by  SIZE  before  printing them; e.g., '-BM' prints sizes in units of
              1,048,576 bytes; see SIZE format below

       -h, --human-readable
              以 1024 为幂显示大小(例如,1023M)

       -H, --si
              以 1000 为幂输出大小(例,1.1G)

       -i, --inodes
              显示 inode 信息而非块使用量

       -k     类似于 --block-size=1K

       -l, --local
              仅列出本地的文件系统

       --no-sync
              取得使用量数据前不进行同步动作(默认)

       --output[=域列表]
              使用域列表定义的输出格式,如果不指定域列表,则输出所有域

       -P, --portability
              使用 POSIX 输出格式

       --sync 取得使用量数据前先进行同步(sync)

       --total
              elide all entries insignificant to available space, and produce a grand total

       -t, --type=类型
              只显示指定文件系统为指定类型的信息

       -T, --print-type
              显示文件系统类型

       -x, --exclude-type=类型
              只显示不是指定类型的文件系统的信息

       -v     (被忽略的选项)

       --help 显示此帮助信息并退出

       --version
              显示版本信息并退出

       Display values are in units of  the  first  available  SIZE  from  --block-size,  and  the
       DF_BLOCK_SIZE,  BLOCK_SIZE  and BLOCKSIZE environment variables.  Otherwise, units default
       to 1024 bytes (or 512 if POSIXLY_CORRECT is set).

       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.

       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).

作者

       由 Torbjorn Granlund、David MacKenzie 和 Paul Eggert 编写。

报告错误

       GNU coreutils 的在线帮助: <https://www.gnu.org/software/coreutils/>
       请向 <https://translationproject.org/team/zh_CN.html> 报告翻译错误。

版权

       Copyright © 2020 Free Software Foundation, Inc.  License GPLv3+:  GNU  GPL  version  3  or
       later <https://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.

参见

       完整文档请见: <https://www.gnu.org/software/coreutils/df>
       或者在本地使用: info '(coreutils) df invocation'

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       中文 man 手册页计划:https://github.com/man-pages-zh/manpages-zh