A path is a unique location to a file or a folder in a file system of an OS.A path to a file is a combination of / and alpha-numeric characters. Show
Absolute Path-name An absolute path is defined as the specifying the location of a file or directory from the root directory(/).
For Example : $cat abc.sql will work only if the fie “abc.sql” exists in your current directory. However, if this file is not present in your working directory and is present somewhere else say in /home/kt , then this command will work only if you will use it like shown below: cat /home/kt/abc.sql In the above example, if the first character of a pathname is /, the file’s location must be determined with respect to root. When you have more than one / in a pathname, for each such /, you have to descend one level in the file system like in the above kt is one level below home, and thus two levels below root.
Relative path Relative path is defined as the path related to the present working directly(pwd). It starts at your current directory and never starts with a / . To be more specific let’s take a look on the below figure in which if we are looking for photos then absolute path for it will be provided as /home/jono/photos but assuming that we are already present in jono directory then the relative path for the same can be written as simple
photos.  Using . and .. in Relative Path-names UNIX offers a shortcut in the relative pathname– that uses either the current or parent directory as reference and specifies the path relative to it. A relative path-name uses one of these cryptic symbols: .(a single dot) - this represents the current directory. ..(two dots) - this represents the parent directory. Now, what this actually means is that if we are currently in directory /home/kt/abc and now you can use .. as an argument to cd to move to the parent directory /home/kt as : $pwd /home/kt/abc $cd .. ***moves one level up*** $pwd /home/kt NOTE:Now / when used with .. has a different meaning ;instead of moving down a level,it moves one level up: $pwd /home/kt/abc ***moves two level up*** $cd ../.. $pwd /home Example of Absolute and Relative Path Suppose you are currently located in home/kt and you want to change your directory to home/kt/abc. Let’s see both the absolute and relative path concepts to do this:
This article is contributed by Dimpy Varshni. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to . See your article appearing on the GeeksforGeeks main page and help other Geeks. Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above. Construct Valid Path and File NamesSpecify Path NamesA path name specifies file locations, for example, Path name specifications differ, depending on the platform on which you are running MATLAB. Use the
To identify the platform on which MATLAB is currently running, use the Characters Within File and Folder NamesFile names must start with a letter, and can contain letters, digits, or underscores. Avoid using accent characters such as umlauts or circumflexes in path names. MATLAB might not recognize the path. In addition, attempts to save a file to such a path might result in unpredictable behavior. If a path or file name contains spaces, enclose the input in single quotes. For example: load 'filename with space.mat'
orload('filename with space.mat')
Absolute and Relative Path NamesMATLAB always accepts absolute path names (also called full path names), such as
Some MATLAB functions also support relative path names. Unless otherwise noted, the path name is relative to the current folder. For example:
Tip If multiple documents are open and docked in the Editor, you can copy the absolute path of any of these documents to the clipboard. This practice is useful if you need to specify the absolute path in another MATLAB tool or an external application. Right-click the document tab, and then select . Partial Path Names in MATLABA partial path name is the last portion of a full path name for a location on the MATLAB search path. Some functions accept partial path names. Examples of partial path names are: Use a partial path name to:
Be sure to specify enough of the path name to make the partial path name unique. Maximum Length of Path Names in MATLABThe maximum length allowed for a path name depends on your platform. For example, on Microsoft Windows platforms:
If you get unexpected results when working with long path names, use absolute instead of relative path names. Alternatively, use shorter names for folders and files. Case Sensitivity of File NamesIn general, it is best to specify path and case precisely when specifying a file name. Case Sensitivity When Calling FunctionsYou call function files by specifying the file name without the file extension. MATLAB returns an error if it cannot find a case-sensitive match on the search path. By default, MATLAB suggests a function with the correct case. When multiple files have the same name, MATLAB follows precedence rules to determine which to call. For more information, see Function Precedence Order. Case Sensitivity When Loading and Saving FilesLinux platforms — File names are case sensitive.
Windows platforms — File names are case insensitive. The Windows operating system considers two files with the same name to be the same file, regardless of case. Therefore, you cannot have two file names that differ only by case in the same folder.
See Also
Related Topics
How do you check the path of the current directory and traverse it to different paths using different options in Unix?The answer is the pwd command, which stands for print working directory. The word print in print working directory means “print to the screen,” not “send to printer.” The pwd command displays the full, absolute path of the current, or working, directory.
Which command changes the current working directory to a different directory?Use the cd command to move from your present directory to another directory. You must have execute (search) permission in the specified directory.
What is the path of home directory in Linux?/home: We can use the /home as the default path for Linux Home Directory.
How do you go to a specific directory in Linux?Navigate directories. Open a window, double-click on a folder, and then double-click on a sub-folder. Use the Back button to backtrack. The cd (change directory) command moves you into a different directory.
|
When typing a path at the DOS prompt What symbol do you use to separate directory names from other directory names or file names?
Urheberrechte © © 2024 de.ketajaman Inc.
