Deleting mail in Unix

deleting mail in Unix type mail d * will remove all mail d 1 3 deletes the 1st and 3rd messages d 1-3 deletes messages 1 through 3 d deletes the current message

To remove the ^M characters at the end of all lines in vi

To remove the ^M characters at the end of all lines in vi, use: :%s/^V^M//g The ^v is a CONTROL-V character and ^m is a CONTROL-M. When you type this, it will look like this: :%s/^M//g