CODEWITHSUNDEEP
c#c++rename
Shady Nawara
Shady Nawara

Reputation: 502

rename multiple file in a sequence c# or c++

How can I rename multiple files like this:

file.txt , anotherfile.txt , log.txt

into something like this :

file1.txt , file2.txt , file3.txt

How can I do this in c# or in c++ ?

Upvotes: 0

Views: 3505

Answers (4)

ex0du5
ex0du5

Reputation: 2624

In c++, you will eventually use

std::rename(frompath, topath);

to perform the action. TR2 proposal N1975 covers this function. However, until then, use boost::rename for the immediate future, and tr2::rename for the period after approval before final placement.

Loop through and use whatever names you want. Don't quite know if you're trying to add numbers, because the current question says 1, 2, 2.

Upvotes: 1

jedwards
jedwards

Reputation: 30200

This would work in you're using an sh-based shell:

#!/bin/sh
FEXT="txt"      # This is the file extension you're searching for
FPRE="file"     # This is the base of the new files names file1.txt, file2.txt, etc.
FNUM=1;         # This is the initial starting number

find . -name "*.${FEXT}" | while read OFN ; do
    # Determine new file name
    NFN="${FPRE}${FNUM}.${FEXT}"
    # Increment FNUM
    FNUM=$(($FNUM + 1))
    # Rename File
    mv "${OFN}" "${NFN}"
done

The script in action:

[james@fractal renfiles]$ touch abc.txt
[james@fractal renfiles]$ touch test.txt
[james@fractal renfiles]$ touch "filename with spaces.txt"
[james@fractal renfiles]$ ll
total 4
-rw-rw-r-- 1 james james   0 Sep  3 17:45 abc.txt
-rw-rw-r-- 1 james james   0 Sep  3 17:45 filename with spaces.txt
-rwxrwxr-x 1 james james 422 Sep  3 17:41 renfiles.sh
-rw-rw-r-- 1 james james   0 Sep  3 17:45 test.txt
[james@fractal renfiles]$ ./renfiles.sh 
[james@fractal renfiles]$ ll
total 4
-rw-rw-r-- 1 james james   0 Sep  3 17:45 file1.txt
-rw-rw-r-- 1 james james   0 Sep  3 17:45 file2.txt
-rw-rw-r-- 1 james james   0 Sep  3 17:45 file3.txt
-rwxrwxr-x 1 james james 422 Sep  3 17:41 renfiles.sh

Upvotes: 1

Sarfaraz Nawaz
Sarfaraz Nawaz

Reputation: 361282

Use File.Move Method as:

IEnumerable<FileInfo> files = GetFilesToBeRenamed();
int i = 1;
foreach(FileInfo f in files)
{
    File.Move(f.FullName, string.Format("file{0}.txt", i));
    i++;
}

And if f is a fullpath, then you can do this instead:

File.Move(f.FullName, 
         Path.Combine(f.Directory.ToString(), string.Format("file{0}.txt", i));

Upvotes: 2

Blau
Blau

Reputation: 5762

In c# you can use File.Move(source, dest)

Of course you can do it programatically:

string[] files = new string[] {"file.txt" , "anotherfile.txt" , "log.txt"}:
int index = 0;
string Dest;
foreach (string Source in files)
{
   if (!Files.Exists(Source )) continue;
   do {
       index++;
       Dest= "file"+i+".txt";
   } while (File.Exists(NewName);

   File.Move(Source , Dest); 
}

Upvotes: 0

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