APPEND Allows programs to open data files in specified directories as if they were in the current directory. ASSIGN Redirects requests for disk operations on one drive to a different drive. ATTRIB Displays or changes file attributes. BACKUP Backs up one or more files from one disk to another. BREAK Sets or clears extended CTRL+C checking. CALL Calls one batch program from another. CD Displays the name of or changes the current directory. CHCP Displays or sets the active code page number. CHDIR Displays the name of or changes the current directory. CHKDSK Checks a disk and displays a status report. CLS Clears the screen. COMMAND Starts a new instance of the MS-DOS command interpreter. COMP Compares the contents of two files or sets of files. COPY Copies one or more files to another location. CTTY Changes the terminal device used to control your system. DATE Displays or sets the date. DEBUG Runs Debug, a program testing and editing tool. DEL Deletes one or more files. DIR Displays a list of files and subdirectories in a directory. DISKCOMP Compares the contents of two floppy disks. DISKCOPY Copies the contents of one floppy disk to another. DOSKEY Edits command lines, recalls MS-DOS commands, and creates macros. DOSSHELL Starts MS-DOS Shell. ECHO Displays messages, or turns command echoing on or off. EDIT Starts MS-DOS Editor, which creates and changes ASCII files. EDLIN Starts Edlin, a line-oriented text editor. EMM386 Turns on or off EMM386 expanded memory support. ERASE Deletes one or more files. EXE2BIN Converts .EXE (executable) files to binary format. EXIT Quits the COMMAND.COM program (command interpreter). EXPAND Expands one or more compressed files. FASTOPEN Decreases the amount of time needed to open frequently used files and directories. FC Compares two files or sets of files, and displays the differences between them. FDISK Configures a hard disk for use with MS-DOS. FIND Searches for a text string in a file or files. FOR Runs a specified command for each file in a set of files. FORMAT Formats a disk for use with MS-DOS. GOTO Directs MS-DOS to a labelled line in a batch program. GRAFTABL Enables MS-DOS to display an extended character set in graphics mode. GRAPHICS Loads a program that can print graphics. HELP Provides Help information for MS-DOS commands. IF Performs conditional processing in batch programs. JOIN Joins a disk drive to a directory on another drive. KEYB Configures a keyboard for a specific language. LABEL Creates, changes, or deletes the volume label of a disk. LH Loads a program into the upper memory area. LOADFIX Loads a program above the first 64K of memory, and runs the program. LOADHIGH Loads a program into the upper memory area. MD Creates a directory. MEM Displays the amount of used and free memory in your system. MIRROR Records information about one or more disks. MKDIR Creates a directory. MODE Configures a system device. MORE Displays output one screen at a time. NLSFUNC Loads country-specific information. PATH Displays or sets a search path for executable files. PAUSE Suspends processing of a batch file and displays a message. PRINT Prints a text file while you are using other MS-DOS commands. PROMPT Changes the MS-DOS command prompt. QBASIC Starts the MS-DOS QBasic programming environment. RD Removes a directory. RECOVER Recovers readable information from a bad or defective disk. REM Records comments (remarks) in batch files or CONFIG.SYS. REN Renames a file or files. RENAME Renames a file or files. REPLACE Replaces files. RESTORE Restores files that were backed up by using the BACKUP command. RMDIR Removes a directory. SET Displays, sets, or removes MS-DOS environment variables. SETVER Sets the version number that MS-DOS reports to a program. SHARE Installs file-sharing and locking capabilities on your hard disk. SHIFT Shifts the position of replaceable parameters in batch files. SORT Sorts input. SUBST Associates a path with a drive letter. SYS Copies MS-DOS system files and command interpreter to a disk you specify. TIME Displays or sets the system time. TREE Graphically displays the directory structure of a drive or path. TYPE Displays the contents of a text file. UNDELETE Recovers files which have been deleted. UNFORMAT Restores a disk erased by the FORMAT command or restructured by the RECOVER command. VER Displays the MS-DOS version. VERIFY Tells MS-DOS whether to verify that your files are written correctly to a disk. VOL Displays a disk volume label and serial number. XCOPY Copies files (except hidden and system files) and directory trees.