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This article mainly introduces the Linux commonly used command touch how to use, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand.

The Linux common command touch command is used to modify the time properties of a file or directory, including access time and change time. If the file does not exist, the system will create a new file

Syntax touch [- acfm] [- d] [- r] [- t] [--help] [--version] [file or directory...] Parameter description:

A change the reading time record of the file.

M change the modification time record of the file.

C if the destination file does not exist, no new file will be created. It has the same effect as-no-create.

F is not used and is reserved for compatibility with other unix systems.

R uses the time record of the reference file, which is the same as that of-file.

D set the time and date, you can use a variety of different formats.

T sets the time record of the file in the same format as the date instruction.

-no-create will not create a new file.

-help lists the instruction format.

-version lists version messages.

The instance uses the instruction "touch" to modify the time attribute of the file "testfile" to the current system time, and enter the following command:

$touch testfile # modify the time attribute of the file first, use the ls command to view the properties of the testfile file, as follows:

$ls-l testfile # View the time attribute of the file # the modification time of the original file is 16:09-rw-r--r-- 1 hdd hdd 55 2011-08-22 16:09 after the testfile executes the instruction "touch" to modify the file property, and check the time property of the file again, as follows:

$touch testfile # modify the file time attribute to the current system time $ls-l testfile # View the file's time property # the modified file's time property is the current system time-rw-r--r-- 1 hdd hdd 55 2011-08-22 19:53 when testfile uses the directive "touch", if the specified file does not exist, a new blank file will be created. For example, in the current directory, use this directive to create a blank file "file" and enter the following command:

$touch file # create a new blank document called "file". Thank you for reading this article carefully. I hope the article "how to use touch in Linux" shared by the editor will be helpful to you. At the same time, I hope you will support us and pay attention to the industry information channel. More related knowledge is waiting for you to learn!

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