How to use linux mv command

In Linux, the mv command is used to move files or rename files; this command can not only move files or directories between different directories, but also rename files and directories. The syntax "mv [ Options] source file or directory destination file or directory". When the second parameter type is a file, the mv command completes the file renaming; when the second parameter is an existing directory name, there can be multiple source files or directory parameters, and the mv command renames the source files specified by each parameter. Move to the target directory.

The operating environment of this tutorial: Ubuntu 16.04 system, Dell G3 computer.

linux mv command

The mv command is the abbreviation of move, which can be used to move files or rename files (move (rename) files) , is a commonly used command under Linux systems, often used to back up files or directories.

1. Command format

mv [选项] 源文件或目录 目标文件或目录

##Options:

• - f: Force overwriting, if the target file already exists, do not ask, force overwrite directly;

• -i: Interactive move, if the target file already exists, ask the user whether to overwrite (default option);

• -n: If the target file already exists, the move will not be overwritten and the user will not be asked;

• -v: Display the moving process of files or directories;

• -u: If the target file already exists, but the source file is newer than the two, the target file will be upgraded;

2. Command function

#The second parameter type in the mv command is different (whether it is the target file or the target directory), the mv command renames the file Or move it to a new directory. When the second parameter type is a file, the mv command completes the file renaming. At this time, there can only be one source file (it can also be the source directory name). It will rename the given source file or directory to the given one. Target file name. When the second parameter is the name of an existing directory, there can be multiple source files or directory parameters, and the mv command will move all the source files specified by each parameter to the target directory. When moving files across file systems, mv first copies and then deletes the original file, and the link to the file will also be lost.

mv command example

Example 1: File rename

Command:

mv test.log new-test.log

Output:

Instructions: Rename the file

text.log tonew-text.log

Example 2: Moving files

Command:

mv test1.txt test3

Output:

Instructions: Move # The ##test.txt

file is moved to the directory

/home/yiibai/and renamed to:mv-text.txt.Example 3: Move the files log1.txt, log2.txt, log3.txt in the test directory to the directory test3

Command:

mv log1.txt log2.txt log3.txt /home/yiibai/test3 ## or mv -t /home/yiibai/test3/ log1.txt log2.txt log3.txt

Output:

Description:

mv log1.txt log2.txt log3.txt test3

This command will

log1.txt,log2.txt,log3.txtmove the three files to thetest3directory,mv -t /opt /soft/test/test4/ log1.txt log2.txt log3.txtcommand moves the three files to thetest4directory.Example 4: Rename file file1 to file2. If file2 already exists, ask whether to overwrite it

Command:

mv -i log1.txt log2.txt

Output:

Example 5: Rename file file1 to file2. Even if file2 exists, it will be directly overwritten.

Command:

mv -f log3.txt log2.txt

Output:

Description:The content of log3.txt

directly covers the content of

log2.txt, -f This is It is a dangerous option. You must keep a clear mind when using it. Generally, it is best not to add it, because it may be executed directly without any prompts.Example 6: Moving directory

Command:

mv dir1 dir2

Output:

Note: If the directorydir2

does not exist, rename the directory

dir1todir2; otherwise, movedir1todir2middle.Example 7: Move all files in the current folder to the upper directory

Command:

mv * ../

Output:

实例八：把当前目录的一个子目录里的文件移动到另一个子目录中

命令：

mv test3/*.txt test5

输出：

实例九：文件被覆盖前做简单备份，前面加参数-b

命令：

mv log1.txt -b log2.txt

输出：

一些补充说明：

• -b 不接受参数，mv会去读取环境变量VERSION_CONTROL来作为备份策略。

• —backup该选项指定如果目标文件存在时的动作，共有四种备份策略：

  • 1.CONTROL=none或 off : 不备份。

  • 2.CONTROL=numbered或t：数字编号的备份

  • 3.CONTROL=existing或nil：如果存在以数字编号的备份，则继续编号备份m+1…n：

  • 执行mv操作前已存在以数字编号的文件log2.txt.~1~，那么再次执行将产生log2.txt~2~，以次类推。如果之前没有以数字编号的文件，则使用下面讲到的简单备份。

  • 4.CONTROL=simple或 never：使用简单备份：在被覆盖前进行了简单备份，简单备份只能有一份，再次被覆盖时，简单备份也会被覆盖。

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