## Touch

### Description

Changes the modification time of a file and possibly creates it at the same time. In addition to working with a single file, this Task can also work a Fileset (which also includes directories).

For JDK 1.1 only the creation of new files with a modification time of now works, all other cases will emit a warning.

### Parameters

Attribute | Description | Required
file | the name of the file | unless a nested fileset element has been specified.
millis | specifies the new modification time of the file in milliseconds since midnight Jan 1 1970 | No
datetime | specifies the new modification time of the file in the format MM/DD/YYYY HH:MM AM_or_PM or MM/DD/YYYY HH:MM:SS AM_or_PM. | No

If both `millis` and `datetime` are omitted the current time is assumed.

### Examples

      <touch file="myfile"/>

creates `myfile` if it doesn't exist and changes the modification time to the current time.

      <touch file="myfile" datetime="06/28/2000 2:02 pm"/>

creates `myfile` if it doesn't exist and changes the modification time to Jun, 28 2000 2:02 pm (14:02 for those used to 24 hour times).

      <touch datetime="09/10/1974 4:30 pm">
        <fileset dir="src_dir"/>
      </touch>

changes the modification time to Oct, 09 1974 4:30 pm of all files and directories found in `src_dir`.

      <touch file="myfile" datetime="06/28/2000 2:02:17 pm"/>

creates `myfile` if it doesn't exist and changes the modification time to Jun, 28 2000 2:02:17 pm (14:02:17 for those used to 24 hour times), if the filesystem allows a precision of one second - a time close to it otherwise.

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