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This article mainly explains the specific usage of the mv command in Linux. The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn the specific usage of the mv command in Linux.

The mv command is similar to cp, but it does not create a copy / copy of a file or directory. No matter what version of Linux you are using, mv is installed on your Linux system by default.

Usage: mv [option]. [- T] Source file target file

Or: mv [options]... Source file. Catalogue

Or: mv [options]... -t directory source file.

Rename the source file to the destination file, or move the source file to the specified directory.

The parameters that must be used for long options are also required for short options.

-- backup [= CONTROL] creates a backup for each existing target file

-b is similar to-- backup but does not accept parameters

-f,-- do not ask before force overwrite

-I,-- ask before interactive overwrite

-n,-- no-clobber does not overwrite existing files

If you specify more than one of-I,-f,-n, only the last one takes effect.

-- strip-trailing-slashes removes the slash at the end of each source file parameter

-S,-- suffix=SUFFIX replaces the commonly used backup file suffix

-t,-- the source file or directory specified by all parameters by target-directory=DIRECTORY

Move to the specified directory

-T,-- no-target-directory treats the target file as a normal file

-u,-- update only if the source file is newer than the target file, or the target file

Move only when it doesn't exist.

-v,-- verbose shows the steps in detail

-- help displays this help and exits

-- version displays version information and exits

Backup files are suffixed with "~" unless with the-- suffix option or SIMPLE_BACKUP_SUFFIX

Environment variable assignment. Version control can be done through the-- backup option or the VERSION_CONTROL environment

Variable to select. The following are the available variable values:

None, off does not backup (even if the-- backup option is used)

Numbered, t backup files are sorted with numbers

Existing, nil use numbers if digital backup files already exist, otherwise backup by normal method

Simple, never always back up in the normal way

Use the example

1. Move Fil

It is important to note that the source and destination addresses of the file must be different when moving the file. Here is an example. If you want to move the file_1.txt file from the current directory to another directory, take / home/pungki/ as an example, the syntax should be as follows:

The code is as follows:

$mv file_1.txt / home/pungki/office

As we can see, when we move the filetxt file, the file1.txt of the previous directory is deleted.

two。 Move multiple files

If you want to move more than one file at a time, we can put them on one line and separate them with spaces.

The code is as follows:

$mv file_2.txt file_3.txt file_4.txt / home/pungki/office

If your files have rules to follow, then you can use wildcards. For example, to remove all files with the .txt extension, we can use the following command:

The code is as follows:

$mv * .txt / home/pungki/office

3. Move directory

Unlike the copy command, moving directories with the mv command is quite straightforward. You can use the mv command without options to move the directory. You can see it at a glance by looking at the screenshot below.

4. Rename a file or directory

We also use the mv command to rename files or directories. However, the destination location and source location must be the same. Then the file name must be different.

Suppose our current directory is / home/pungki/Documents, and we want to rename file1.txt to file2.txt. Then the command should be as follows:

The code is as follows:

$mv file_1.txt file_2.txt

If it is an absolute path, it should look like this:

The code is as follows:

$mv / home/pungki/Documents/file_1.txt / home/pungki/Documents/file_2.txt

5. Rename directory

The rules in the previous paragraph also apply to directories. Look at this example:

The code is as follows:

$mv directory_1/ directory_2/

6. Print mobile information

When you move or rename a large number of files or directories, you may want to know if your command has been successfully executed without going to the target location to check. The-v option is about to be used.

The code is as follows:

$mv-v * .txt / home/pungki/office

This method is also applicable to directories.

7. Use interactive mode

When you move the file to another location and that location happens to have the same file, the mv command will overwrite the original file. There are generally no hints about this behavior of mv. If you want to generate a prompt about overwriting the file, we can use the-I option. (note: usually distributions use-I as the default option through the alias command, so there is a prompt. )

Suppose we want to move file1.txt to / home/pungki/office. Meanwhile, there is already a file1.txt file in the / home/pungki/office directory.

The code is as follows:

$mv-I file_1.txt / home/pungki/office

This prompt will let us know the existence of file_1.txt at the target location. If we press the y key, then that file will be deleted, otherwise it won't.

8. Use update option

The-I option prompts us about overwriting files, while-u performs updates only when the source file is newer than the destination file. Let's take a look at the following example:

If file1.txt and file2.txt have the following characteristics:

The code is as follows:

File_1.txt has 84 bytes file size and it last modified time is 12:00

File_2.txt has 0 bytes file size and it last modified time is 11:59

We want to move them to the / home/pungki/office directory. * * but the destination address * already has file1.txt and file2.txt.

We move file1.txt and file2.txt from the current directory to / home/pungki/office with the following command

The code is as follows:

$mv-uv * .txt / home/pungki/office

You can see that these files have been moved. These files can be moved because their recently modified timestamps are newer than the files in the / home/pungki/office directory.

9. Do not overwrite any existing files

If the-I option asks us if we want to overwrite the file, then the-n option will not allow us to overwrite any existing files.

Continuing with the example in point 8, if we replace-u with-n and add the-v option, we will see that no files have been moved to the / home/pungki/office directory.

The code is as follows:

$mv-vn * .txt / home/pungki/office

10. Create a backup on replication

By default, moving a file will overwrite the existing target file. But what if we move the wrong file and the target file has been overwritten by the new file? Is there a way to recover previous files? The answer is yes. We can use the-b option. This option backs up the old file when the new file overwrites the old file. Here we also take point 8 as an example.

The code is as follows:

$mv-bv * .txt / home/pungki/office

As you can see in the screenshot, a file named file1.txt~ and file2.txt~ appears in the / home/pungki/office directory. The tilde (~) means that these files are backup files. As we can see from their properties, these files are older than file1.txt and file2.txt.

11. Unconditionally overwrite existing files

You can use the-f option when you want to overwrite existing files or directories anyway. If you specify both the-f option and the-I or-n option, the-f option overrides them-that is, without any prompt, so know what you are doing when using this parameter.

The code is as follows:

$mv-f * .txt / home/pungki/office

Thank you for reading, the above is the content of "specific usage of mv command in Linux". After the study of this article, I believe you have a deeper understanding of the specific usage of mv command in Linux, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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