Question

I had a program work on some images of mine and it returned them to my directory. funny thing, they’re now all png images instead of gif.

At first i thought it was simple renaming, but I tested with php using createimagefrompng(), which will throw an error if the image is not a valid png file. No errors were returned.

Wheter or not this gives me a 100% accurate result isn’t the issue here, the issue is that I want to rename all those files in a similar way.

Now while I could write a php file to do this for me, I’m wondering how I could do the following in batch or c# or java.

All these files still contain the string ‘.gif’, and I want to remove that. In php it would be as simple as using a foreach-loop, reading the file, using str_replace and then destroying the old one and writing the new one.

I’m kinda stuck as to how I would do this in batch, c# or java, can someone help me here?

Also, I am running windows Vista and I have Powershell 1.0 installed.

Solution 1 – C#:

var files = Directory.GetFiles(@'C:\Downloads\Temp\test\'); foreach (var file in files) {   if(file.Contains('.gif'))   {     string testing = string.Format('{0}.png', Path.GetFileNameWithoutExtension(file.Replace('.gif', '')));     File.Move(file, @'C:\Downloads\Temp\test\'+testing);   } } 

Answer 1

You could probably do something to the extent of the following in c#

var files = new DirectoryInfo(@'c:\files').GetFiles(@'*.gif'); foreach (var file in files)     File.Move(file.FullName, string.Format('{0}.gif', Path.GetFileNameWithoutExtension(file.FullName))); 

or more simply..

var files = Directory.GetFiles(@'c:\files', @'*.gif'); foreach (var file in files)     File.Move(file, string.Format('{0}.gif', Path.GetFileNameWithoutExtension(file)));