Linux下如何统计文件数目

若只是查看当前目录下的文件数目（除开.和..文件),使用下面的命令：

$ find ./ -type f | wc -l

若查看当前目录下面的所有文件，含.和..使用如下命令即可：

$wc -l





ps：find command and wc command



1、FIND命令

NAME


find - search for files in a directory hierarchy

SYNOPSIS


find [path...] [expression]

DESCRIPTION


This manual page documents the GNU version of
find. find searches the


directory tree rooted at each given file name by
evaluating the given


expression from
left to right, according to the
rules of precedence


(see section OPERATORS), until the outcome is known (the left hand
side


is false for and operations, true for or), at which point find
moves on


to the next file name.


The first argument that begins with `-', `(', `)', `,', or `!' is
taken


to be the
beginning of the expression;
any arguments before it are


paths to search, and any arguments after it are the rest of the
expres-


sion. If
no paths are given, the current
directory is used. If no


expression is given, the expression `-print' is used.


find exits with status 0 if
all files are
processed successfully,


greater than 0 if errors occur.

OPTIONS


All options always return
true. They always take effect, rather than


being processed only when their place in
the expression
is reached.


Therefore, for
clarity, it is best to place them at the
beginning of


the expression.


-daystart


Measure times (for -amin,
-atime, -cmin,
-ctime, -mmin, and


-mtime) from
the beginning of today rather than from 24
hours


ago.


-depth Process each directory's contents before the directory
itself.


-follow


Dereference symbolic links. Implies -noleaf.


-help, --help


Print a summary of the command-line usage of find and exit.


-maxdepth levels


Descend at most levels (a non-negative integer) levels of
direc-


tories below
the command line arguments.
`-maxdepth 0' means


only apply the tests and actions to the command
line arguments.


-mindepth levels


Do not apply any tests or actions at levels less
than levels (a


non-negative integer). `-mindepth 1'
means process
all files


except the command line arguments.


-mount Don't descend
directories on other
filesystems. An alternate


name for -xdev, for compatibility with some
other versions of


find.


-noleaf


Do not
optimize by assuming that
directories contain 2 fewer


subdirectories than their hard
link count.
This option is


needed when
searching filesystems that do not follow the
Unix


directory-link convention, such as CD-ROM or
MS-DOS filesystems


or AFS volume
mount points. Each directory on
a normal Unix


filesystem has at least 2 hard
links: its
name and its
`.'


entry.
Additionally, its
subdirectories (if any) each have a


`..' entry linked to that
directory. When find is
examining a


directory, after it has statted 2 fewer
subdirectories than the


directory's link count, it knows that the rest of the entries
in


the directory are non-directories (`leaf' files in the
directory


tree). If only the files' names need to be
examined, there is


no need to
stat them;
this gives a significant increase in


search speed.


-version, --version


Print the find version number and exit.


-xdev Don't descend directories on other
filesystems.



2、WC命令


wc - print the number of bytes, words, and lines in files

SYNOPSIS


wc [OPTION]... [FILE]...

DESCRIPTION


Print byte, word, and newline counts for each FILE, and a total
line if


more than one FILE is specified. With no FILE, or
when FILE is -, read


standard input.


-c, --bytes


print the byte counts


-m, --chars


print the character counts


-l, --lines


print the newline counts


-L, --max-line-length


print the length of the longest line


-w, --words


print the word counts


--help display this help and exit



--version


output version information and exit