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名稱

       df - 報告檔案系統磁碟空間使用情況

概述

       df [選項列表]... [檔案列表]...

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.

選項

       顯示檔案列表中每一個檔案所在的檔案系統的資訊,沒有指定檔案則預設為整個檔案系統。

       必選引數對長短選項同時適用。

       -a, --all
              包含偽(pseudo)、重複和無法訪問的檔案系統

       -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 為冪顯示大小(例如,1023M)

       -H, --si
              以 1000 為冪輸出大小(例,1.1G)

       -i, --inodes
              顯示 inode 資訊而非塊使用量

       -k     類似於 --block-size=1K

       -l, --local
              僅列出本地的檔案系統

       --no-sync
              取得使用量資料前不進行同步動作(預設)

       --output[=域列表]
              使用域列表定義的輸出格式,如果不指定域列表,則輸出所有域

       -P, --portability
              使用 POSIX 輸出格式

       --sync 取得使用量資料前先進行同步(sync)

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

       -t, --type=型別
              只顯示指定檔案系統為指定型別的資訊

       -T, --print-type
              顯示檔案系統型別

       -x, --exclude-type=型別
              只顯示不是指定型別的檔案系統的資訊

       -v     (被忽略的選項)

       --help 顯示此幫助資訊並退出

       --version
              顯示版本資訊並退出

       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 編寫。

報告錯誤

       GNU coreutils 的線上幫助: <https://www.gnu.org/software/coreutils/>
       請向 <https://translationproject.org/team/zh_CN.html> 報告翻譯錯誤。

版權

       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.

參見

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

       本頁面中文版由中文 man 手冊頁計劃提供。
       中文 man 手冊頁計劃:https://github.com/man-pages-zh/manpages-zh