asp.net mvc barcode reader $ ln original-file-name added-file-name in Software

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$ ln original-file-name added-file-name
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In the next example, the today file is given the additional name weather. It is just another name for the today file.
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$ ls today $ ln today weather $ ls today weather
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You can give the same file several names by using the ln command on the same file many times. In the next example, the file today is given both the name weather and weekend:
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$ ln today weather $ ln today weekend $ ls today weather weekend
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You can use the ls command with the -l option to find if a file has several links. ls with -l lists several pieces of information, such as permissions, the number of links a file has, its size, and the date it was last modified. In this line of information, the first number, which precedes the user's login name, specifies the number of links a file has. The number before the date is the size of the file. The date is the last time a file was modified. In the next example, the user lists the full information for both today and weather. Notice the number of links in both files is two. Furthermore, the size and date are the same. This suggests both files are actually different names for the same file.
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$ ls -l today weather -rw-rw-r-- 2 chris group 563 Feb 14 10:30 today -rw-rw-r-- 2 chris group 563 Feb 14 10:30 weather
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This still does not tell you specifically what filenames are linked. You can be somewhat sure if two files have exactly the same number of links, sizes, and modification dates, as in the case of the files today and weather. To be certain, however, you can use the ls command with the -i option. With the -i option, the ls command lists the filename and its inode number. An inode number is a unique number used by the system to identify a specific file. If two filenames have the same inode number, they reference exactly the same file. They are two names for the same file. In the next example, the user lists today, weather, and larisa. Notice that today and weather have the same inode number.
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$ ls -i today weather larisa 1234 today 1234 weather 3976 larisa
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The added names, or links, created with ln are often used to reference the same file from different directories. A file in one directory can be linked to and accessed from another directory. Suppose you need to reference a file in the home directory from within another directory. You can set up a link from that directory to the file in the home directory. This link is actually another name for the file. Because the link is in another directory, it can have the same name as the original file.
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To link a file in the home directory to another directory, use the name of that directory as the second argument in the ln command.
$ ln filename directory-name
In the next example, the file today in the chris directory is linked to the reports directory. The ls command lists the today file in both the chris directory and the reports directory. In fact, only one copy of the today file exists, the original file in the home directory.
$ ln today reports $ ls today reports $ ls reports today $
Just as with the cp and mv commands, you can give another name to the link. Simply place the new name after the directory name, separated by a slash. In the next example, the file today is linked to the reports directory with the name wednesday. Only one actual file still exists, the original file called today in the chris directory. However, today is now linked to the directory reports with the name wednesday. In this sense, today has been given another name. In the reports directory, the today file goes by the name wednesday.
$ ln today reports/wednesday $ ls today reports $ ls reports wednesday $
You can easily link a file in any directory to a file in another directory by referencing the files with their pathnames. In the next example, the file monday in the reports directory is linked to the directory chris. Notice the second argument is an absolute pathname.
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