Summery
ドライブ、パーティション毎の容量空き容量、iNodeの値を取得する
Construction
$ df [option]
Option
-a : 全てのファイルシステムの表示
-i : iNodeの使用料を表示
-k : Kbで表示
-h : 容量を適当な単位で表示
Sample
# 各パーティション毎のTOTAL容量と使用容量
$ df
# パーティション毎のiNodeを取得する
$ df -i
# FileSystemが長い文字列の場合に改行されてしまう状態を防ぐ
$ df
#Filesystem 1K-ブロック 使用 使用可 使用% マウント位置
/dev/mapper/VolGroup00-LogVol00
1872990276 909014288 867298920 52% /
/dev/sda1 101086 20070 75797 21% /boot
tmpfs 8213672 0 8213672 0% /dev/shm
## ↓↓↓
$ df -P
#Filesystem 1024-blocks Used Available Capacity マウント位置
/dev/mapper/VolGroup00-LogVol00 1872990276 909035416 867277792 52% /
/dev/sda1 101086 20070 75797 21% /boot
tmpfs 8213672 0 8213672 0% /dev/shm
Discription
The df utility displays statistics about the amount of free disk space on the specified
filesystem or on the filesystem of which file is a part. Values are displayed in
512-byte per block counts. If neither a file or a filesystem operand is specified, sta-
tistics for all mounted filesystems are displayed (subject to the -t option below).
The following options are available:
-a Show all mount points, including those that were mounted with the MNT_IGNORE
flag.
-b Use (the default) 512-byte blocks. This is only useful as a way to override an
BLOCKSIZE specification from the environment.
-g Use 1073741824-byte (1-Gbyte) blocks rather than the default. Note that this
overrides the BLOCKSIZE specification from the environment.
-H "Human-readable" output. Use unit suffixes: Byte, Kilobyte, Megabyte, Gigabyte,
Terabyte and Petabyte in order to reduce the number of digits to three or less
using base 10 for sizes.
-h "Human-readable" output. Use unit suffixes: Byte, Kilobyte, Megabyte, Gigabyte,
Terabyte and Petabyte in order to reduce the number of digits to three or less
using base 2 for sizes.
-i Include statistics on the number of free inodes. This option is now the default
to conform to Version 3 of the Single UNIX Specification (``SUSv3'') Use -P to
suppress this output.
-k Use 1024-byte (1-Kbyte) blocks, rather than the default. Note that this over-
rides the BLOCKSIZE specification from the environment.
-l Only display information about locally-mounted filesystems.
-m Use 1048576-byte (1-Mbyte) blocks rather than the default. Note that this over-
rides the BLOCKSIZE specification from the environment.
-n Print out the previously obtained statistics from the filesystems. This option
should be used if it is possible that one or more filesystems are in a state
such that they will not be able to provide statistics without a long delay.
When this option is specified, df will not request new statistics from the
filesystems, but will respond with the possibly stale statistics that were pre-
viously obtained.
-P Use (the default) 512-byte blocks. This is only useful as a way to override an
BLOCKSIZE specification from the environment.
-T Only print out statistics for filesystems of the specified types. More than one
type may be specified in a comma separated list. The list of filesystem types
can be prefixed with ``no'' to specify the filesystem types for which action
should not be taken. For example, the df command:
df -T nonfs,mfs
lists all filesystems except those of type NFS and MFS. The lsvfs(1) command
can be used to find out the types of filesystems that are available on the sys-
tem.
-t If used with no arguments, this option is a no-op (Mac OS X already prints the
total allocated-space figures). If used with an argument, it acts like -T, but
this usage is deprecated and should not be relied upon.
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