Renaming a directory in MS-DOS is much like renaming a file use the ren or rename command to rename the directory. Because you cannot have a file and directory that have the same name you will not need to worry about mistakenly renaming a file instead of a directory, unless you're using wild characters.
Normal balance is the accounting classification of an account. It is part of double-entry book-keeping technique. An account has either credit (Abbrev. CR) or debit (Abbrev.
If the debit side is larger, then the account has a debit balance; if the credit side is larger, the account has a credit balance. The account balances represent the financial condition of the business as of a specific date, and are reported on in the balance sheet.