Searching and changing files

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Hi,

I would like to help to create a program to search for all files of a certain extension, and change some data within those files, in fact, I do not know how.

For example:

Change the data X, which is within all *. txt files in a directory.

/
/test.txt
/test/test1.txt
/test/test1/test.txt
/test/test1/test1.txt
/test/test1/test2.txt
/eg/eg.txt
/eg/blah/eg1.txt

but as the list of files within that folder and sub-folders is very large, is to make the program look for these files, and change the data?

Thanks for the help. :)

Posted 8-May-11 17:20pm

Alexandre Bencz

Updated 8-May-11 22:32pm

Hans Dietrich

v3

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Hans Dietrich · Accepted Answer · 2011-05-08T22:30:00

For a Windows solution:

1. Use FindFirstFile and FindNextFile to find *.txt files. Here's an example of how to use these: http://msdn.microsoft.com/en-us/library/aa365200%28v=vs.85%29.aspx

2. When you find a *.txt file, open it; here you can use stdio or Win32 APIs.

3. Loop to read the file in chunks, scan for the text you want to change, and substitute/delete it.

4. As an alternative to (3), read the whole file into memory, do the scan.

5. Continue to next file.

6. Go to (2).

Richard MacCutchan · Accepted Answer · 2011-05-08T22:48:00

Solution 2

There is a simple UNIX solution here[^].

Posted 8-May-11 22:48pm

Richard MacCutchan