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目录
Linux是一个开源的操作系统,它的目录结构非常重要,因为它是使用Linux系统的一个基础。本文将介绍一些操作Linux系统中文件、目录的常用命令,其中有些命令在Dos中也有命令相对应(指发挥的功能类似的)。
另外有一点区别: Linux系统下命令是大小写敏感的,一般是全小写的;Dos系统下命令是不区分大小写的,命令名大小写混装都是相同的,如 cd CD cD Cd就是同一个命令。
cd:切换当前工作目录。可以使用绝对路径或相对路径。
进入根目录的命令是:cd /,进入用户的home目录的命令是:cd ~。
其中,“/”、“~” 分别表示根目录和当前用户的home目录。
绝对路径方式的切换:cd /home/user/documents
相对路径方式的切换:cd ../user/documents
其中,绝对路径指从根目录起始的路径;相对路径指从当前目录起始的路径。
- hann@HannYang:~$ cd --help
- cd: cd [-L|[-P [-e]] [-@]] [dir]
- Change the shell working directory.
-
- Change the current directory to DIR. The default DIR is the value of the
- HOME shell variable.
-
- The variable CDPATH defines the search path for the directory containing
- DIR. Alternative directory names in CDPATH are separated by a colon (:).
- A null directory name is the same as the current directory. If DIR begins
- with a slash (/), then CDPATH is not used.
-
- If the directory is not found, and the shell option `cdable_vars' is set,
- the word is assumed to be a variable name. If that variable has a value,
- its value is used for DIR.
- Options:
- -L force symbolic links to be followed: resolve symbolic
- links in DIR after processing instances of `..'
- -P use the physical directory structure without following
- symbolic links: resolve symbolic links in DIR before
- processing instances of `..'
- -e if the -P option is supplied, and the current working
- directory cannot be determined successfully, exit with
- a non-zero status
- -@ on systems that support it, present a file with extended
- attributes as a directory containing the file attributes
- The default is to follow symbolic links, as if `-L' were specified.
- `..' is processed by removing the immediately previous pathname component
- back to a slash or the beginning of DIR.
- Exit Status:
- Returns 0 if the directory is changed, and if $PWD is set successfully when
- -P is used; non-zero otherwise.
cd 同名同功能,格式: cd 目录路径
显示当前目录名或改变当前目录。或者用长名称 chdir
CHDIR [/D] [drive:][path]
CHDIR [..]
CD [/D] [drive:][path]
CD [..]
.. 指定要改成父目录。
键入 CD drive: 显示指定驱动器中的当前目录。
不带参数只键入 CD,则显示当前驱动器和目录。
使用 /D 开关,除了改变驱动器的当前目录之外,
还可改变当前驱动器。
如果命令扩展被启用,CHDIR 会如下改变:
当前的目录字符串会被转换成使用磁盘名上的大小写。所以,
如果磁盘上的大小写如此,CD C:\TEMP 会将当前目录设为
C:\Temp。
CHDIR 命令不把空格当作分隔符,因此有可能将目录名改为一个
带有空格但不带有引号的子目录名。例如:
cd \winnt\profiles\username\programs\start menu
与下列相同:
cd "\winnt\profiles\username\programs\start menu"
在扩展停用的情况下,你必须键入以上命令。
pwd:显示当前工作目录的路径。例如,pwd
将显示当前工作目录的完整路径。
pwd命令用于显示当前工作目录(即当前所在的目录)的绝对路径。在Linux系统中,每个用户都有自己的home目录,刚登陆系统时,所在的目录就是用户自己的home目录。
hann@HannYang:~$ pwd
/home/hann
- hann@HannYang:~$ pwd --help
- pwd: pwd [-LP]
- Print the name of the current working directory.
-
- Options:
- -L print the value of $PWD if it names the current working
- directory
- -P print the physical directory, without any symbolic links
-
- By default, `pwd' behaves as if `-L' were specified.
-
- Exit Status:
- Returns 0 unless an invalid option is given or the current directory
- cannot be read.
Dos下没有单独的pwd命令,用CD命令不加参数即可:
C:\Users\hann>CD
C:\Users\hann
C:\Users\hann>cD
C:\Users\hann
C:\Users\hann>Cd
C:\Users\hann
C:\Users\hann>cd
C:\Users\hann
ls:显示当前或指定目录中的文件和目录列表。
ls 命令参数极其复杂,默认为短格式显示,只有文件名,详细格式可以用参数 -l ,以长格式详细显示目录中的文件和目录列表,包括文件大小、权限、所有者、修改时间等信息。
- hann@HannYang:~$ ls --help
- Usage: ls [OPTION]... [FILE]...
- List information about the FILEs (the current directory by default).
- Sort entries alphabetically if none of -cftuvSUX nor --sort is specified.
-
- 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 C-style escapes for nongraphic characters
- --block-size=SIZE with -l, scale sizes by SIZE when printing them;
- e.g., '--block-size=M'; see SIZE format below
- -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, newest first
- -C list entries by columns
- --color[=WHEN] colorize the output; WHEN can be 'always' (default
- if omitted), 'auto', or 'never'; more info below
- -d, --directory list directories themselves, not their contents
- -D, --dired generate output designed for Emacs' dired mode
- -f do not sort, enable -aU, disable -ls --color
- -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
- --group-directories-first
- group directories before files;
- can be augmented with a --sort option, but any
- use of --sort=none (-U) disables grouping
- -G, --no-group in a long listing, don't print group names
- -h, --human-readable with -l and -s, print sizes like 1K 234M 2G etc.
- --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)
- --hyperlink[=WHEN] hyperlink file names; WHEN can be 'always'
- (default if omitted), 'auto', or 'never'
- --indicator-style=WORD append indicator with style WORD to entry names:
- none (default), slash (-p),
- file-type (--file-type), classify (-F)
- -i, --inode print the index number of each file
- -I, --ignore=PATTERN do not list implied entries matching shell PATTERN
- -k, --kibibytes default to 1024-byte blocks for disk usage;
- used only with -s and per directory totals
- -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 entry names without quoting
- -o like -l, but do not list group information
- -p, --indicator-style=slash
- append / indicator to directories
- -q, --hide-control-chars print ? instead of nongraphic characters
- --show-control-chars show nongraphic characters as-is (the 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,
- shell-escape, shell-escape-always, c, escape
- (overrides QUOTING_STYLE environment variable)
- -r, --reverse reverse order while sorting
- -R, --recursive list subdirectories recursively
- -s, --size print the allocated size of each file, in blocks
- -S sort by file size, largest first
- --sort=WORD sort by WORD instead of name: none (-U), size (-S),
- time (-t), version (-v), extension (-X)
- --time=WORD with -l, show time as WORD instead of default
- modification time: atime or access or use (-u);
- ctime or status (-c); also use specified time
- as sort key if --sort=time (newest first)
- --time-style=TIME_STYLE time/date format with -l; see TIME_STYLE below
- -t sort by modification time, newest first
- -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, newest first
- -U do not sort; list entries in directory order
- -v natural sort of (version) numbers within text
- -w, --width=COLS set output width to COLS. 0 means no limit
- -x list entries by lines instead of by columns
- -X sort alphabetically by entry extension
- -Z, --context print any security context of each file
- -1 list one file per line. Avoid '\n' with -q or -b
- --help display this help and exit
- --version output version information and exit
-
- The SIZE argument is an integer and optional unit (example: 10K is 10*1024).
- Units are K,M,G,T,P,E,Z,Y (powers of 1024) or KB,MB,... (powers of 1000).
-
- The TIME_STYLE argument can be full-iso, long-iso, iso, locale, or +FORMAT.
- FORMAT is interpreted like in date(1). If FORMAT is FORMAT1<newline>FORMAT2,
- then FORMAT1 applies to non-recent files and FORMAT2 to recent files.
- TIME_STYLE prefixed with 'posix-' takes effect only outside the POSIX locale.
- Also the TIME_STYLE environment variable sets the default style to use.
-
- Using color to distinguish file types is disabled both by default and
- with --color=never. With --color=auto, ls emits color codes only when
- standard output is connected to a terminal. The LS_COLORS environment
- variable can change the settings. Use the dircolors command to set it.
-
- Exit status:
- 0 if OK,
- 1 if minor problems (e.g., cannot access subdirectory),
- 2 if serious trouble (e.g., cannot access command-line argument).
-
- GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
- Report ls translation bugs to <https://translationproject.org/team/>
- Full documentation at: <https://www.gnu.org/software/coreutils/ls>
- or available locally via: info '(coreutils) ls invocation'
DIR [drive:][path][filename] [/A[[:]attributes]] [/B] [/C] [/D] [/L] [/N]
[/O[[:]sortorder]] [/P] [/Q] [/R] [/S] [/T[[:]timefield]] [/W] [/X] [/4]
[drive:][path][filename]
指定要列出的驱动器、目录和/或文件。
/A 显示具有指定属性的文件。
属性 D 目录 R 只读文件
H 隐藏文件 A 准备存档的文件
S 系统文件 I 无内容索引文件
L 重新分析点 O 脱机文件
- 表示“否”的前缀
/B 使用空格式(没有标题信息或摘要)。
/C 在文件大小中显示千位数分隔符。这是默认值。用 /-C 来
禁用分隔符显示。
/D 跟宽式相同,但文件是按栏分类列出的。
/L 用小写。
/N 新的长列表格式,其中文件名在最右边。
/O 用分类顺序列出文件。
排列顺序 N 按名称(字母顺序) S 按大小(从小到大)
E 按扩展名(字母顺序) D 按日期/时间(从先到后)
G 组目录优先 - 反转顺序的前缀
/P 在每个信息屏幕后暂停。
/Q 显示文件所有者。
/R 显示文件的备用数据流。
/S 显示指定目录和所有子目录中的文件。
/T 控制显示或用来分类的时间字符域
时间段 C 创建时间
A 上次访问时间
W 上次写入的时间
/W 用宽列表格式。
/X 显示为非 8dot3 文件名产生的短名称。格式是 /N 的格式,
短名称插在长名称前面。如果没有短名称,在其位置则
显示空白。
/4 以四位数字显示年份
可以在 DIRCMD 环境变量中预先设定开关。通过添加前缀 - (破折号)
来替代预先设定的开关。例如,/-W。
tree:以树形结构显示当前目录中的文件和目录列表。
- hann@HannYang:~$ tree --help
- usage: tree [-acdfghilnpqrstuvxACDFJQNSUX] [-H baseHREF] [-T title ]
- [-L level [-R]] [-P pattern] [-I pattern] [-o filename] [--version]
- [--help] [--inodes] [--device] [--noreport] [--nolinks] [--dirsfirst]
- [--charset charset] [--filelimit[=]#] [--si] [--timefmt[=]<f>]
- [--sort[=]<name>] [--matchdirs] [--ignore-case] [--fromfile] [--]
- [<directory list>]
- ------- Listing options -------
- -a All files are listed.
- -d List directories only.
- -l Follow symbolic links like directories.
- -f Print the full path prefix for each file.
- -x Stay on current filesystem only.
- -L level Descend only level directories deep.
- -R Rerun tree when max dir level reached.
- -P pattern List only those files that match the pattern given.
- -I pattern Do not list files that match the given pattern.
- --ignore-case Ignore case when pattern matching.
- --matchdirs Include directory names in -P pattern matching.
- --noreport Turn off file/directory count at end of tree listing.
- --charset X Use charset X for terminal/HTML and indentation line output.
- --filelimit # Do not descend dirs with more than # files in them.
- --timefmt <f> Print and format time according to the format <f>.
- -o filename Output to file instead of stdout.
- ------- File options -------
- -q Print non-printable characters as '?'.
- -N Print non-printable characters as is.
- -Q Quote filenames with double quotes.
- -p Print the protections for each file.
- -u Displays file owner or UID number.
- -g Displays file group owner or GID number.
- -s Print the size in bytes of each file.
- -h Print the size in a more human readable way.
- --si Like -h, but use in SI units (powers of 1000).
- -D Print the date of last modification or (-c) status change.
- -F Appends '/', '=', '*', '@', '|' or '>' as per ls -F.
- --inodes Print inode number of each file.
- --device Print device ID number to which each file belongs.
- ------- Sorting options -------
- -v Sort files alphanumerically by version.
- -t Sort files by last modification time.
- -c Sort files by last status change time.
- -U Leave files unsorted.
- -r Reverse the order of the sort.
- --dirsfirst List directories before files (-U disables).
- --sort X Select sort: name,version,size,mtime,ctime.
- ------- Graphics options -------
- -i Don't print indentation lines.
- -A Print ANSI lines graphic indentation lines.
- -S Print with CP437 (console) graphics indentation lines.
- -n Turn colorization off always (-C overrides).
- -C Turn colorization on always.
- ------- XML/HTML/JSON options -------
- -X Prints out an XML representation of the tree.
- -J Prints out an JSON representation of the tree.
- -H baseHREF Prints out HTML format with baseHREF as top directory.
- -T string Replace the default HTML title and H1 header with string.
- --nolinks Turn off hyperlinks in HTML output.
- ------- Input options -------
- --fromfile Reads paths from files (.=stdin)
- ------- Miscellaneous options -------
- --version Print version and exit.
- --help Print usage and this help message and exit.
- -- Options processing terminator.
同名类似功能 tree,linux的tree参数更丰富
以图形显示驱动器或路径的文件夹结构。
TREE [drive:][path] [/F] [/A]
/F 显示每个文件夹中文件的名称。
/A 使用 ASCII 字符,而不使用扩展字符。
mkdir:创建一个新的目录。例如:mkdir new_directory
将创建一个名为new_directory
的新目录。
- hann@HannYang:~$ cd --help
- cd: cd [-L|[-P [-e]] [-@]] [dir]
- Change the shell working directory.
-
- Change the current directory to DIR. The default DIR is the value of the
- HOME shell variable.
-
- The variable CDPATH defines the search path for the directory containing
- DIR. Alternative directory names in CDPATH are separated by a colon (:).
- A null directory name is the same as the current directory. If DIR begins
- with a slash (/), then CDPATH is not used.
-
- If the directory is not found, and the shell option `cdable_vars' is set,
- the word is assumed to be a variable name. If that variable has a value,
- its value is used for DIR.
- Options:
- -L force symbolic links to be followed: resolve symbolic
- links in DIR after processing instances of `..'
- -P use the physical directory structure without following
- symbolic links: resolve symbolic links in DIR before
- processing instances of `..'
- -e if the -P option is supplied, and the current working
- directory cannot be determined successfully, exit with
- a non-zero status
- -@ on systems that support it, present a file with extended
- attributes as a directory containing the file attributes
- The default is to follow symbolic links, as if `-L' were specified.
- `..' is processed by removing the immediately previous pathname component
- back to a slash or the beginning of DIR.
- Exit Status:
- Returns 0 if the directory is changed, and if $PWD is set successfully when
- -P is used; non-zero otherwise.
mkdir 同名同功能,或者用短名称 md。
创建目录。
MKDIR [drive:]path
MD [drive:]path
如果命令扩展被启用,MKDIR 会如下改变:
如果需要,MKDIR 会在路径中创建中级目录。例如: 假设 \a 不
存在,那么:
mkdir \a\b\c\d
与:
mkdir \a
chdir \a
mkdir b
chdir b
mkdir c
chdir c
mkdir d
相同。如果扩展被停用,则需要键入 mkdir \a\b\c\d。
rmdir:删除一个空目录。例如:rmdir empty_directory
将删除名为empty_directory
的空目录。
rm:用于删除文件或目录。如果我们想删除一个目录及其所有子文件和子目录,可以使用rm命令加上-r参数,例如:rm -r example。
- hann@HannYang:~$ rmdir --help
- Usage: rmdir [OPTION]... DIRECTORY...
- Remove the DIRECTORY(ies), if they are empty.
-
- --ignore-fail-on-non-empty
- ignore each failure that is solely because a directory
- is non-empty
- -p, --parents remove DIRECTORY and its ancestors; e.g., 'rmdir -p a/b/c' is
- similar to 'rmdir a/b/c a/b a'
- -v, --verbose output a diagnostic for every directory processed
- --help display this help and exit
- --version output version information and exit
-
- GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
- Report rmdir translation bugs to <https://translationproject.org/team/>
- Full documentation at: <https://www.gnu.org/software/coreutils/rmdir>
- or available locally via: info '(coreutils) rmdir invocation'
- hann@HannYang:~$ rm --help
- Usage: rm [OPTION]... [FILE]...
- Remove (unlink) the FILE(s).
-
- -f, --force ignore nonexistent files and arguments, never prompt
- -i prompt before every removal
- -I prompt once before removing more than three files, or
- when removing recursively; less intrusive than -i,
- while still giving protection against most mistakes
- --interactive[=WHEN] prompt according to WHEN: never, once (-I), or
- always (-i); without WHEN, prompt always
- --one-file-system when removing a hierarchy recursively, skip any
- directory that is on a file system different from
- that of the corresponding command line argument
- --no-preserve-root do not treat '/' specially
- --preserve-root[=all] do not remove '/' (default);
- with 'all', reject any command line argument
- on a separate device from its parent
- -r, -R, --recursive remove directories and their contents recursively
- -d, --dir remove empty directories
- -v, --verbose explain what is being done
- --help display this help and exit
- --version output version information and exit
-
- By default, rm does not remove directories. Use the --recursive (-r or -R)
- option to remove each listed directory, too, along with all of its contents.
-
- To remove a file whose name starts with a '-', for example '-foo',
- use one of these commands:
- rm -- -foo
-
- rm ./-foo
-
- Note that if you use rm to remove a file, it might be possible to recover
- some of its contents, given sufficient expertise and/or time. For greater
- assurance that the contents are truly unrecoverable, consider using shred.
-
- GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
- Report rm translation bugs to <https://translationproject.org/team/>
- Full documentation at: <https://www.gnu.org/software/coreutils/rm>
- or available locally via: info '(coreutils) rm invocation'
Dos下rmdir和rd是同一个命令,linux下rmdir和rm是两个不同的命令。
删除一个目录。
RMDIR [/S] [/Q] [drive:]path
RD [/S] [/Q] [drive:]path
/S 除目录本身外,还将删除指定目录下的所有子目录和
文件。用于删除目录树。
/Q 安静模式,带 /S 删除目录树时不要求确认
cp:复制一个文件或目录。
cp:复制文件或目录。例如,cp file1 file2
将复制file1
到file2
。要复制目录及其内容,需要使用-r
选项,如cp -r dir1 dir2
。
cp命令用于复制文件或目录。例如,我们可以使用cp命令将一个名为“example”的目录复制到当前目录中,命令是:cp -r example .
- hann@HannYang:~$ cd --help
- cd: cd [-L|[-P [-e]] [-@]] [dir]
- Change the shell working directory.
-
- Change the current directory to DIR. The default DIR is the value of the
- HOME shell variable.
-
- The variable CDPATH defines the search path for the directory containing
- DIR. Alternative directory names in CDPATH are separated by a colon (:).
- A null directory name is the same as the current directory. If DIR begins
- with a slash (/), then CDPATH is not used.
-
- If the directory is not found, and the shell option `cdable_vars' is set,
- the word is assumed to be a variable name. If that variable has a value,
- its value is used for DIR.
- Options:
- -L force symbolic links to be followed: resolve symbolic
- links in DIR after processing instances of `..'
- -P use the physical directory structure without following
- symbolic links: resolve symbolic links in DIR before
- processing instances of `..'
- -e if the -P option is supplied, and the current working
- directory cannot be determined successfully, exit with
- a non-zero status
- -@ on systems that support it, present a file with extended
- attributes as a directory containing the file attributes
- The default is to follow symbolic links, as if `-L' were specified.
- `..' is processed by removing the immediately previous pathname component
- back to a slash or the beginning of DIR.
- Exit Status:
- Returns 0 if the directory is changed, and if $PWD is set successfully when
- -P is used; non-zero otherwise.
copy 主要功能相同,linux中简称为cp。
将一份或多份文件复制到另一个位置。
COPY [/D] [/V] [/N] [/Y | /-Y] [/Z] [/L] [/A | /B ] source [/A | /B]
[+ source [/A | /B] [+ ...]] [destination [/A | /B]]
source 指定要复制的文件。
/A 表示一个 ASCII 文本文件。
/B 表示一个二进位文件。
/D 允许解密要创建的目标文件
destination 为新文件指定目录和/或文件名。
/V 验证新文件写入是否正确。
/N 复制带有非 8dot3 名称的文件时,
尽可能使用短文件名。
/Y 不使用确认是否要覆盖现有目标文件
的提示。
/-Y 使用确认是否要覆盖现有目标文件
的提示。
/Z 用可重新启动模式复制已联网的文件。
/L 如果源是符号链接,请将链接复制
到目标而不是源链接指向的实际文件。
命令行开关 /Y 可以在 COPYCMD 环境变量中预先设定。
这可能会被命令行上的 /-Y 替代。除非 COPY
命令是在一个批处理脚本中执行的,默认值应为
在覆盖时进行提示。
要附加文件,请为目标指定一个文件,为源指定
数个文件(用通配符或 file1+file2+file3 格式)。
touch:创建一个新的空文件或更新现有文件的访问和修改时间。例如,touch file1
将创建一个名为file1
的新文件,或touch file1
将更新file1
的访问和修改时间。
- hann@HannYang:~$ touch --help
- Usage: touch [OPTION]... FILE...
- Update the access and modification times of each FILE to the current time.
-
- A FILE argument that does not exist is created empty, unless -c or -h
- is supplied.
-
- A FILE argument string of - is handled specially and causes touch to
- change the times of the file associated with standard output.
-
- Mandatory arguments to long options are mandatory for short options too.
- -a change only the access time
- -c, --no-create do not create any files
- -d, --date=STRING parse STRING and use it instead of current time
- -f (ignored)
- -h, --no-dereference affect each symbolic link instead of any referenced
- file (useful only on systems that can change the
- timestamps of a symlink)
- -m change only the modification time
- -r, --reference=FILE use this file's times instead of current time
- -t STAMP use [[CC]YY]MMDDhhmm[.ss] instead of current time
- --time=WORD change the specified time:
- WORD is access, atime, or use: equivalent to -a
- WORD is modify or mtime: equivalent to -m
- --help display this help and exit
- --version output version information and exit
- Note that the -d and -t options accept different time-date formats.
- GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
- Report touch translation bugs to <https://translationproject.org/team/>
- Full documentation at: <https://www.gnu.org/software/coreutils/touch>
- or available locally via: info '(coreutils) touch invocation'
没有同名对应的,可以用copy命令实现创建新的空文件
copy con newfile.txt 需要手输 ctrl+Z 加 回车。
另外可用 echo. > newfile.txt,这个命令一步到位。
注意echo后有句点符号中间不能有空格,有空格就把点写进文件了。
C:\Users\hann>echo. > newfile.txt
C:\Users\hann>type newfile.txt
C:\Users\hann>dir newfile.txt
驱动器 C 中的卷是 Windows
卷的序列号是 1E34-A256
C:\Users\hann 的目录
2023/08/26 12:16 3 newfile.txt
1 个文件 3 字节
0 个目录 123,609,210,880 可用字节
缺点: 创建了非0字节的“空”文件,有空行存在
mv:移动或重命名一个文件或目录。
mv:移动文件或目录,也可用于重命名。例如,mv file1 file2
将把file1
重命名为file2
,并删除file1
。
要移动目录及其内容,需要使用-r
选项,如mv -r dir1 dir2
。
- hann@HannYang:~$ cd --help
- cd: cd [-L|[-P [-e]] [-@]] [dir]
- Change the shell working directory.
-
- Change the current directory to DIR. The default DIR is the value of the
- HOME shell variable.
-
- The variable CDPATH defines the search path for the directory containing
- DIR. Alternative directory names in CDPATH are separated by a colon (:).
- A null directory name is the same as the current directory. If DIR begins
- with a slash (/), then CDPATH is not used.
-
- If the directory is not found, and the shell option `cdable_vars' is set,
- the word is assumed to be a variable name. If that variable has a value,
- its value is used for DIR.
- Options:
- -L force symbolic links to be followed: resolve symbolic
- links in DIR after processing instances of `..'
- -P use the physical directory structure without following
- symbolic links: resolve symbolic links in DIR before
- processing instances of `..'
- -e if the -P option is supplied, and the current working
- directory cannot be determined successfully, exit with
- a non-zero status
- -@ on systems that support it, present a file with extended
- attributes as a directory containing the file attributes
- The default is to follow symbolic links, as if `-L' were specified.
- `..' is processed by removing the immediately previous pathname component
- back to a slash or the beginning of DIR.
- Exit Status:
- Returns 0 if the directory is changed, and if $PWD is set successfully when
- -P is used; non-zero otherwise.
移动文件并重命名文件和目录。
要移动至少一个文件:
MOVE [/Y | /-Y] [drive:][path]filename1[,...] destination
要重命名一个目录:
MOVE [/Y | /-Y] [drive:][path]dirname1 dirname2
[drive:][path]filename1 指定你想移动的文件位置和名称。
destination 指定文件的新位置。目标可包含一个驱动器号
和冒号、一个目录名或组合。如果只移动一个文件
并在移动时将其重命名,你还可以包括文件名。
[drive:][path]dirname1 指定要重命名的目录。
dirname2 指定目录的新名称。
/Y 取消确认覆盖一个现有目标文件的提示。
/-Y 对确认覆盖一个现有目标文件发出提示。
命令行开关 /Y 可以出现在 COPYCMD 环境变量中。这可以用命令行上
的 /-Y 替代。默认值是,除非 MOVE 命令是从一个批脚本内
执行的,覆盖时都发出提示。
Dos另有单独命名文件的命令 ren
重命名文件。
RENAME [drive:][path]filename1 filename2.
REN [drive:][path]filename1 filename2.
请注意,你不能为目标文件指定新的驱动器或路径。
chmod:更改文件或目录的权限。例如,chmod 755 file1
将更改file1
的权限,使其可读、可写和可执行。
- hann@HannYang:~$ cd --help
- cd: cd [-L|[-P [-e]] [-@]] [dir]
- Change the shell working directory.
-
- Change the current directory to DIR. The default DIR is the value of the
- HOME shell variable.
-
- The variable CDPATH defines the search path for the directory containing
- DIR. Alternative directory names in CDPATH are separated by a colon (:).
- A null directory name is the same as the current directory. If DIR begins
- with a slash (/), then CDPATH is not used.
-
- If the directory is not found, and the shell option `cdable_vars' is set,
- the word is assumed to be a variable name. If that variable has a value,
- its value is used for DIR.
- Options:
- -L force symbolic links to be followed: resolve symbolic
- links in DIR after processing instances of `..'
- -P use the physical directory structure without following
- symbolic links: resolve symbolic links in DIR before
- processing instances of `..'
- -e if the -P option is supplied, and the current working
- directory cannot be determined successfully, exit with
- a non-zero status
- -@ on systems that support it, present a file with extended
- attributes as a directory containing the file attributes
- The default is to follow symbolic links, as if `-L' were specified.
- `..' is processed by removing the immediately previous pathname component
- back to a slash or the beginning of DIR.
- Exit Status:
- Returns 0 if the directory is changed, and if $PWD is set successfully when
- -P is used; non-zero otherwise.
两边的文件系统属性不一样,只有attrib功能比较类似
显示或更改文件属性。
ATTRIB [+R | -R] [+A | -A] [+S | -S] [+H | -H] [+O | -O] [+I | -I] [+X | -X] [+P | -P] [+U | -U]
[drive:][path][filename] [/S [/D]] [/L]
+ 设置属性。
- 清除属性。
R 只读文件属性。
A 存档文件属性。
S 系统文件属性。
H 隐藏文件属性。
O 脱机属性。
I 无内容索引文件属性。
X 无清理文件属性。
V 完整性属性。
P 固定属性。
U 非固定属性。
[drive:][path][filename]
指定属性要处理的文件。
/S 处理当前文件夹及其所有子文件夹中
的匹配文件。
/D 也处理文件夹。
/L 处理符号链接和
符号链接目标的属性
以上介绍的这些基础命令基本上Dos,Linux两系统都有,熟悉这些命令可以帮助用户更加方便地管理自己的文件和目录。当然还有文件查看类的命令,比如 more命令两系统都有这个命令;另外 linux 的 cat 对应 dos 的 TYPE。
总的来说,相比较还是Linux的外部命令更丰富一点,还有 find, stat, grep 等等这些功能强大的外部命令在Dos里没有相对应的命令(小众的非官方的自己编写的除外)。
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