Linux touch command usage examples

Detailed explanation of linux touch command:

1. Command function:

Creation and modification timestamps of files or directories

2. Command syntax:

touch [options] [file name or directory name]

3. Command parameters:

-a only changes the access time of the file.

-c or --no-create does not create non-existent files.

-d Use the specified date and time instead of the current time

-m means to modify the Modify time instead of the Access time

-r file Use the timestamp (access, modify) of the specified file to update the timestamp of the file (access, modify)

Note: access indicates the time when the file was last accessed (only accessed, no changes were made)

modify indicates the time when the file was last modified

change indicates the time when the file attributes were last changed, including permissions, size, attributes, etc.

-t changes the time to the date specified by the parameter, such as: 07081556 means 15:56 on July 8

4. Usage examples:

Create a non-existent file, such as in the /data directory:

Modify the access time of the file, such as modifying the access time of westoslinux in the figure above

Modify the modify time of a file, such as modifying the modify time of the /data/westoslinux file

Use the specified time to change the access or modify time of a file or directory. For example, to change the access time of the file in the figure above to 2012-07-15 08:30:30, to change the modify timestamp, just change the parameter a to m.

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