linux文件系统

查看当前linux支持的文件系统

ls  /lib/modules/`uname -r`/kernel/fs

查看启用的文件系统

cat /proc/filesystems

查看系统容量

df

NAME
       df - report file system disk space usage

SYNOPSIS
       df [OPTION]... [FILE]...

DESCRIPTION
       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 environ‐
       ment 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 (which is always the root file system).  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.
du

NAME
       du - estimate file space usage
SYNOPSIS
       du [OPTION]... [FILE]...
       du [OPTION]... --files0-from=F
DESCRIPTION
       Summarize disk usage of each FILE, recursively for directories.
       Mandatory arguments to long options are mandatory for short options too.