touch – Create an Empty File or Update Timestamp

The touch command is used to create a new empty file or update the timestamp of an existing file.

Examples:

• To create a new empty file:

touch newfile.txt

• To update the timestamp of an existing file (useful for updating access or modification time without changing the content):

touch existingfile.txt

• Important Points:
  • If the file specified in the touch command does not exist, it will be created as an empty file.
  • If the file already exists, touch will update the file’s access and modification time to the current time.