How to remove ^M (Ctrl - M) Characters using Telnet or Putty in Windows ?

Open the Telnet or Putty
Go to the Corresponding Directory
Type the following in the Telnet or Putty and confirm the whether ^M (Ctrl - M) characters exists.
```
vi filename
```
Type the following in the Telnet or Putty.
```
Perl –pi –e ‘s/\r//g;’ filename
```
Enter the corresponding file name instead of the word "filename". So the Control M characters will be removed for the file name given.

OR
```
Perl –pi –e ‘s/\r//g;’ *
```
The above syntax will remove the Control M characters for all the files in that particular folder and not the sub folder.
Type the following in the Telnet or Putty and confirm the ^M (Ctrl - M) characters has been removed.
```
vi filename
```