What You Should Know

As a minimum, you should be familiar with computer connection and turn-on procedures. If you have a printer, you should know how to connect it your computer, set switches, and load paper and ribbons. You should also be familiar with your system's monitor type, keyboard, available memory, and storage subsystem. In particular, you should check the versions of DOS you are using. Many commands have been added in recent DOS releases. If you have an old version, such as 2.01, some commands may not be available for your use. However, with only a few exceptions, this blog describes the basic set of DOS commands available to most DOS versions beginning with DOS versions 2.01. Commands introduced in later versions of DOS are identified for you.

Finally, you should be familiar with your keyboard. If you are not fully familiar with your keyboard, read the descriptive information and compare it to your keyboard.

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Making, Changing, and Removing Directories

You used the DIR (directory) command in Section 3 to display a list of filenames on the screen. You can create and name multiple disk directories on a disk to allow for the subdivision of your files. This feature lets you group common files into separate directories. This is similar to subdividing information into file cabinet drawers and file folders. This is particularly convenient when you use a fixed disk containing hundreds or even thousands of files. Instead of listing all files in one directory, you can list files in smaller, more manageable sub directories. Lock at the following directory commands. Command Purpose MKDIR or MD Make a new directory ...

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Path

The PATH command is used to provide access to files located in other directories or on other disks. The PATH command is usually entered as a line in an AUTOEXEC.BAT (or batch) file, which most often contains one or more DOS commands. The AUTOEXEC.BAT file is automatically executed upon system turn-on to run one or more desired programs without the need for user intervention. Other batch files are executed upon command. When an AUTOEXEC.CAT file is used, each command contained in the file executes as it is encountered. The creation and use of batch files is described in Section 8. To illustrate the PATH command, assume you have a program named GATOR.COM that is located in a sub directory. You are not sure if it is cn disk C or disk A, so you want to search both disks and execute the command when found. To complicate matters, you are not sure if the program is in the SWAMP sub directory or the MUD sub directory. Here is where the PATH command comes to your rescue. To set up a search...

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