du命令解决linux磁盘空间满的问题（很不错的哦）

首先你要确定是不是真正的是因为数据空间占满磁盘，经常是因为某个程序的日志占满了空间。当发现磁盘满了以后不要着急，使用以下命令从根目录开始排除查找哪个文件夹最大：

du --max-depth=1

找到最大的目录后，进入目录再执行上面的命令，逐步就找到大空间的文件夹了，如果是日志文件删除了就可以了。

下面是du命令的详细用法：

用法：du [选项]... [文件]...

或：du [选项]... --files0-from=F

总结每个<文件>的磁盘用量，目录则取总用量。

长选项必须用的参数在使用短选项时也是必须的。

-a, --all write counts for all files, not just directories

--apparent-size print apparent sizes, rather than disk usage; although

the apparent size is usually smaller, it may be

larger due to holes in (`sparse') files, internal

fragmentation, indirect blocks, and the like

-B, --block-size=SIZE use SIZE-byte blocks

-b, --bytes equivalent to `--apparent-size --block-size=1'

-c, --total produce a grand total

-D, --dereference-args dereference FILEs that are symbolic links

--files0-from=F summarize disk usage of the NUL-terminated file

names specified in file F

-H like --si, but also evokes a warning; will soon

change to be equivalent to --dereference-args (-D)

-h, --human-readable print sizes in human readable format (e.g., 1K 234M 2G)

--si like -h, but use powers of 1000 not 1024

-k like --block-size=1K

-l, --count-links count sizes many times if hard linked

-m like --block-size=1M

-L, --dereference dereference all symbolic links

-P, --no-dereference don't follow any symbolic links (this is the default)

-0, --null end each output line with 0 byte rather than newline

-S, --separate-dirs do not include size of subdirectories

-s, --summarize display only a total for each argument

-x, --one-file-system skip directories on different file systems

-X FILE, --exclude-from=FILE Exclude files that match any pattern in FILE.

--exclude=PATTERN Exclude files that match PATTERN.

--max-depth=N print the total for a directory (or file, with --all)

only if it is N or fewer levels below the command

line argument; --max-depth=0 is the same as

--summarize

--time show time of the last modification of any file in the

directory, or any of its subdirectories

--time=WORD show time as WORD instead of modification time:

atime, access, use, ctime or status

--time-style=STYLE show times using style STYLE:

full-iso, long-iso, iso, +FORMAT

FORMAT is interpreted like `date'

--help 显示此帮助信息并退出

--version 输出版本信息并退出

[大小]可以是以下的单位(单位前可加上整数)：

kB 1000，K 1024，MB 1000000，M 1048576，还有 G、T、P、E、Z、Y。