[mw_shl_code=bash,true]Usage: ls [OPTION]... [FILE]...
List information about the FILEs (the current directory by default).
Sort entries alphabetically if none of -cftuvSUX nor --sort.
Mandatory arguments to long options are mandatory for short options too.
-a, --all do not ignore entries starting with .
-A, --almost-all do not list implied . and ..
--author with -l, print the author of each file
-b, --escape print octal escapes for nongraphic characters
--block-size=SIZE use SIZE-byte blocks
-B, --ignore-backups do not list implied entries ending with ~
-c with -lt: sort by, and show, ctime (time of last
modification of file status information)
with -l: show ctime and sort by name
otherwise: sort by ctime
-C list entries by columns
--color[=WHEN] control whether color is used to distinguish file
types. WHEN may be `never', `always', or `auto'
-d, --directory list directory entries instead of contents,
and do not dereference symbolic links
-D, --dired generate output designed for Emacs' dired mode
-f do not sort, enable -aU, disable -lst
-F, --classify append indicator (one of */=>@|) to entries
--file-type likewise, except do not append `*'
--format=WORD across -x, commas -m, horizontal -x, long -l,
single-column -1, verbose -l, vertical -C
--full-time like -l --time-style=full-iso
-g like -l, but do not list owner
-G, --no-group like -l, but do not list group
-h, --human-readable with -l, print sizes in human readable format
(e.g., 1K 234M 2G)
--si likewise, but use powers of 1000 not 1024
-H, --dereference-command-line
follow symbolic links listed on the command line
--dereference-command-line-symlink-to-dir
follow each command line symbolic link
that points to a directory
--hide=PATTERN do not list implied entries matching shell PATTERN
(overridden by -a or -A)
--indicator-style=WORD append indicator with style WORD to entry names:
none (default), slash (-p),
file-type (--file-type), classify (-F)
-i, --inode with -l, print the index number of each file
-I, --ignore=PATTERN do not list implied entries matching shell PATTERN
-k like --block-size=1K
-l use a long listing format
-L, --dereference when showing file information for a symbolic
link, show information for the file the link
references rather than for the link itself
-m fill width with a comma separated list of entries
-n, --numeric-uid-gid like -l, but list numeric user and group IDs
-N, --literal print raw entry names (don't treat e.g. control
characters specially)
-o like -l, but do not list group information
-p, --indicator-style=slash
append / indicator to directories
-q, --hide-control-chars print ? instead of non graphic characters
--show-control-chars show non graphic characters as-is (default
unless program is `ls' and output is a terminal)
-Q, --quote-name enclose entry names in double quotes
--quoting-style=WORD use quoting style WORD for entry names:
literal, locale, shell, shell-always, c, escape
-r, --reverse reverse order while sorting
-R, --recursive list subdirectories recursively
-s, --size with -l, print size of each file, in blocks
-S sort by file size
--sort=WORD extension -X, none -U, size -S, time -t,
version -v, status -c, time -t, atime -u,
access -u, use -u
--time=WORD with -l, show time as WORD instead of modification
time: atime, access, use, ctime or status; use
specified time as sort key if --sort=time
--time-style=STYLE with -l, show times using style STYLE:
full-iso, long-iso, iso, locale, +FORMAT.
FORMAT is interpreted like `date'; if FORMAT is
FORMAT1 *本站禁止HTML标签噢* FORMAT2, FORMAT1 applies to
non-recent files and FORMAT2 to recent files;
if STYLE is prefixed with `posix-', STYLE
takes effect only outside the POSIX locale
-t sort by modification time
-T, --tabsize=COLS assume tab stops at each COLS instead of 8
-u with -lt: sort by, and show, access time
with -l: show access time and sort by name
otherwise: sort by access time
-U do not sort; list entries in directory order.
In combination with one_per_line format `-1',
it will show files immediately and it has no
memory limitations.
-v sort by version
-w, --width=COLS assume screen width instead of current value
-x list entries by lines instead of by columns
-X sort alphabetically by entry extension
-1 list one file per line
SELinux options:
--lcontext Display security context. Enable -l. Lines
will probably be too wide for most displays.
-Z, --context Display security context so it fits on most
displays. Displays only mode, user, group,
security context and file name.
--scontext Display only security context and file name.
--help display this help and exit
--version output version information and exit
SIZE may be (or may be an integer optionally followed by) one of following:
kB 1000, K 1024, MB 1000*1000, M 1024*1024, and so on for G, T, P, E, Z, Y.
By default, color is not used to distinguish types of files. That is
equivalent to using --color=none. Using the --color option without the
optional WHEN argument is equivalent to using --color=always. With
--color=auto, color codes are output only if standard output is connected
to a terminal (tty). The environment variable LS_COLORS can influence the
colors, and can be set easily by the dircolors command.
Exit status is 0 if OK, 1 if minor problems, 2 if serious trouble.[/mw_shl_code]
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[mw_shl_code=bash,true]用法：ls [选项]... [文件]...
List information about the FILEs (the current directory by default).
Sort entries alphabetically if none of -cftuvSUX nor --sort.
长选项必须用的参数在使用短选项时也是必须的。
-a, --all 不隐藏任何以 . 字符开始的项目
-A, --almost-all 列出除了 . 及 .. 以外的任何项目
--author 和 -l 同时使用时列出每个文件的作者
-b, --escape 以八进制溢出序列表示不可打印的字符
--block-size=大小 块以指定<大小>的字节为单位
-B, --ignore-backups 不列出任何以 ~ 字符结束的项目
-c 配合 -lt：根据 ctime 排序及显示 ctime (文件
状态最后更改的时间)
配合 -l：显示 ctime 但根据名称排序
否则：根据 ctime 排序
-C list entries by columns
--color[=WHEN] control whether color is used to distinguish file
types. WHEN may be `never', `always', or `auto'
-d, --directory list directory entries instead of contents,
and do not dereference symbolic links
-D, --dired generate output designed for Emacs' dired mode
-f do not sort, enable -aU, disable -lst
-F, --classify append indicator (one of */=>@|) to entries
--file-type likewise, except do not append `*'
--format=WORD across -x, commas -m, horizontal -x, long -l,
single-column -1, verbose -l, vertical -C
--full-time like -l --time-style=full-iso
-g like -l, but do not list owner
-G, --no-group like -l, but do not list group
-h, --human-readable with -l, print sizes in human readable format
(e.g., 1K 234M 2G)
--si likewise, but use powers of 1000 not 1024
-H, --dereference-command-line
follow symbolic links listed on the command line
--dereference-command-line-symlink-to-dir
follow each command line symbolic link
that points to a directory
--hide=PATTERN do not list implied entries matching shell PATTERN
(overridden by -a or -A)
--indicator-style=WORD append indicator with style WORD to entry names:
none (default), slash (-p),
file-type (--file-type), classify (-F)
-i, --inode with -l, print the index number of each file
-I, --ignore=PATTERN do not list implied entries matching shell PATTERN
-k like --block-size=1K
-l 使用较长格式列出信息
-L, --dereference 当显示符号链接的文件信息时，显示符号链接所指示
的对象而并非符号链接本身的信息
-m 所有项目以逗号分隔，并填满整行行宽
-n, --numeric-uid-gid like -l, but list numeric user and group IDs
-N, --literal print raw entry names (don't treat e.g. control
characters specially)
-o like -l, but do not list group information
-p, --indicator-style=slash
append / indicator to directories
-q, --hide-control-chars 以 ? 字符代替无法打印的字符
--show-control-chars 直接显示无法打印的字符 (这是默认方式，除非调用
的程序名称是“ls”而且是在终端机画面输出结果)
-Q, --quote-name 将项目名称括上双引号
--quoting-style=方式 使用指定的 quoting <方式>显示项目的名称：
literal、locale、shell、shell-always、c、escape
-r, --reverse 逆序排序
-R, --recursive 递归列出所有子目录
-s, --size 和 -l 同时使用时以块为单位列出每个文件的大小
-S 根据文件大小排序
--sort=WORD 以下是可选用的 WORD 和它们代表的相应选项：
extension -X status -c
none -U time -t
size -S atime -u
time -t access -u
version -v use -u
--time=WORD 和 -l 同时使用时显示 WORD 所代表的时间而非修改时
间：atime、access、use、ctime 或 status；加上
--sort=time 选项时会以指定时间作为排序关键字
--time-style=STYLE 和 -l 同时使用时根据 STYLE 代表的格式显示时间：
full-iso、iso、locale、posix-iso、+FORMAT。
FORMAT 即是“date”所用的时间格式；如果 FORMAT
是 FORMAT1<新行>FORMAT2，FORMAT1 适用于较旧
的文件而 FORMAT2 适用于较新的文件；如果 STYLE
以“posix-”开头，则 STYLE 仅在 POSIX 语系之外
生效。
-t 根据修改时间排序
-T, --tabsize=宽度 自行指定 tab 的<宽度>，而非 8 个字符
-u with -lt: sort by, and show, access time
with -l: show access time and sort by name
otherwise: sort by access time
-U do not sort; list entries in directory order.
In combination with one_per_line format `-1',
it will show files immediately and it has no
memory limitations.
-v sort by version
-w, --width=COLS 自行指定萤幕宽度而不使用目前的数值
-x 逐行列出项目而不是逐栏列出
-X 根据扩展名排序
-1 每行只列出一个文件
SELinux options:
--lcontext Display security context. Enable -l. Lines
will probably be too wide for most displays.
-Z, --context Display security context so it fits on most
displays. Displays only mode, user, group,
security context and file name.
--scontext Display only security context and file name.
--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。
By default, color is not used to distinguish types of files. That is
equivalent to using --color=none. Using the --color option without the
optional WHEN argument is equivalent to using --color=always. With
--color=auto, color codes are output only if standard output is connected
to a terminal (tty). The environment variable LS_COLORS can influence the
colors, and can be set easily by the dircolors command.
Exit status is 0 if OK, 1 if minor problems, 2 if serious trouble.[/mw_shl_code]
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[mw_shl_code=bash,true]Usage: cat [OPTION] [FILE]...
Concatenate FILE(s), or standard input, to standard output.
-A, --show-all equivalent to -vET
-b, --number-nonblank number nonblank output lines
-e equivalent to -vE
-E, --show-ends display $ at end of each line
-n, --number number all output lines
-s, --squeeze-blank never more than one single blank line
-t equivalent to -vT
-T, --show-tabs display TAB characters as ^I
-u (ignored)
-v, --show-nonprinting use ^ and M- notation, except for LFD and TAB
--help display this help and exit
--version output version information and exit
With no FILE, or when FILE is -, read standard input.
Examples:
cat f - g Output f's contents, then standard input, then g's contents.
cat Copy standard input to standard output.[/mw_shl_code]
中文：
[mw_shl_code=bash,true]用法：cat [选项] [文件]...
将[文件]或标准输入组合输出到标准输出。
-A, --show-all 等价于 -vET
-b, --number-nonblank 对非空输出行编号
-e 等价于 -vE
-E, --show-ends 在每行结束处显示 $
-n, --number 对输出的所有行编号
-s, --squeeze-blank 不输出多行空行
-t 与 -vT 等价
-T, --show-tabs 将跳格字符显示为 ^I
-u (被忽略)
-v, --show-nonprinting 使用 ^ 和 M- 引用，除了 LFD 和 TAB 之外
--help 显示此帮助信息并退出
--version 输出版本信息并退出
如果[文件]缺省，或者[文件]为 - ，则读取标准输入。
示例：
cat f - g 先输出 f 的内容，然后输出标准输入的内容，最后输出 g 的内容。
cat 将标准输入的内容复制到标准输出。[/mw_shl_code]
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