Menu
I want to change modification timestamp of a binary file. What is the best way for doing this?
Would opening and closing the file be a good option? (I require a solution where the modification of the timestamp will be changed on every platform and JVM).
413
Overview. The touch command in Linux is a handy way to change the access time and modification time of a file or directory. It can also be used to create an empty file quickly. In this short tutorial, we'll see how to simulate this command in Java.
Touch command Syntax to create a new file: You can create a single file at a time using touch command. The file which is created can be viewed by ls command and to get more details about the file you can use long listing command ll or ls -l command . Here file with name 'File1' is created using touch command.
The touch command's primary function is to modify a timestamp. Commonly, the utility is used for file creation, although this is not its primary function. The terminal program can change the modification and access time for any given file. The touch command creates a file only if the file doesn't already exist.
The touch command is a standard program for Unix/Linux operating systems, that is used to create, change and modify timestamps of a file.
The File class has a setLastModified method. That is what ANT does.
167
My 2 cents, based on @Joe.M answer
public static void touch(File file) throws IOException{ long timestamp = System.currentTimeMillis(); touch(file, timestamp); } public static void touch(File file, long timestamp) throws IOException{ if (!file.exists()) { new FileOutputStream(file).close(); } file.setLastModified(timestamp); } If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
