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List of DOS system files
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<p> <a href="/facts/MS-DOS/fVrrz1uN">MS-DOS</a> / <a href="/facts/PC_DOS/ScsfqAwQ">PC DOS</a> and some related disk operating systems use the files mentioned here. </p><p>System Files: </p> <ul><li><a href="/facts/IO.SYS/z6GETtk6">IO.SYS</a> (or <a href="/facts/IBMBIO.COM/gDj9lqoY">IBMBIO.COM</a>): This contains the system initialization code and builtin device drivers;</li> <li><a href="/facts/MSDOS.SYS/cG08pg3j">MSDOS.SYS</a> (or <a href="/facts/IBMDOS.COM/yLKCPK8j">IBMDOS.COM</a>): This contains the DOS kernel.</li></ul> <p>Command-line interpreter (Shell): </p> <ul><li><a href="/facts/COMMAND.COM/06Sz5wle">COMMAND.COM</a>: This is the command interpreter.</li></ul> <p>User configuration files: </p> <ul><li><a href="/facts/AUTOEXEC.BAT/EGxK9nzh">AUTOEXEC.BAT</a>: This is run by the default shell (usually COMMAND.COM) to execute commands at startup.</li> <li><a href="/facts/CONFIG.SYS/a1QSEJhj">CONFIG.SYS</a>: This contains statements to configure DOS and load device drivers.</li></ul> <p>Standard DOS utility programs: </p> <ul><li><a href="/facts/Append_(command)/d72UqhJ3">APPEND</a>: Set a search path for data files.</li> <li><a href="/facts/ASSIGN_(DOS_command)/d72UqhJ3">ASSIGN</a>: Redirect requests for disk operations on one drive to a different drive.</li> <li><a href="/facts/ATTRIB/t81evL39">ATTRIB</a>: Set or display file attributes.</li> <li><a href="/facts/Backup_(command)/d72UqhJ3">BACKUP</a> / <a href="/facts/Restore_(command)/d72UqhJ3">RESTORE</a>: simple backup and restore utilities.</li> <li><a href="/facts/CHKDSK/ac8yljw2">CHKDSK</a>: Check disk for file system integrity.</li> <li><a href="/facts/Comp_(command)/U8uB3Tff">COMP</a>: File compare utility.</li> <li><a href="/facts/Debug_(command)/q9HoCNTs">DEBUG</a>: Simple command line debugger.</li> <li><a href="/facts/DELTREE/V1JjGh7f">DELTREE</a>: Delete a directory tree.</li> <li><a href="/facts/Diskcomp/tNrzgUB7">DISKCOMP</a>: Compare floppy disks.</li> <li><a href="/facts/Diskcopy/3QJB8QEB">DISKCOPY</a>: Copy floppy disks.</li> <li><a href="/facts/DOSKEY/uVHm334Y">DOSKEY</a>: Command line editor.</li> <li><a href="/facts/MS-DOS_Editor/6gARCW4e">EDIT</a> / <a href="/facts/EDLIN/7yxzQfR7">EDLIN</a>: Very basic text editor(s); EDLIN is in earlier versions.</li> <li><a href="/facts/File_Compare/ktLTXQmV">FC</a>: File compare utility.</li> <li><a href="/facts/Fdisk/S6hru6n4">FDISK</a>: Partitions fixed disks.</li> <li><a href="/facts/Find_(Windows)/YVFoxeRQ">FIND</a>: Find text in files.</li> <li><a href="/facts/Format_(command)/Ws5EnQyQ">FORMAT</a>: Formats disks.</li> <li><a href="/facts/JOIN_(DOS_command)/d72UqhJ3">JOIN</a>: Joins a drive letter to a subdirectory.</li> <li><a href="/facts/Label_(command)/3s9IeoYD">LABEL</a>: Set or remove a disk volume label.</li> <li><a href="/facts/Mem_(command)/d72UqhJ3">MEM</a>: Display memory usage.</li> <li><a href="/facts/Mode_(command)/d72UqhJ3">MODE</a>: Set modes for system devices.</li> <li><a href="/facts/More_(command)/emnMr8xz">MORE</a>: Display output one screen at a time.</li> <li><a href="/facts/Move_(command)/uh2QlAf2">MOVE</a>: Move files from one directory to another.</li> <li><a href="/facts/Print_(command)/XoxcBk4u">PRINT</a>: Print spooler.</li> <li><a href="/facts/Replace_(command)/mDWt85UV">REPLACE</a>: Replace files.</li> <li><a href="/facts/Share_(command)/uNdsI1PF">SHARE</a>: File sharing and locking support.</li> <li>SORT: Sorts input.</li> <li><a href="/facts/SUBST/unG6UIxG">SUBST</a>: Substitutes a drive letter for a subdirectory.</li> <li><a href="/facts/SYS_(command)/8cnqBzkb">SYS</a>: Transfers the system files to another drive to make it bootable.</li> <li><a href="/facts/Tree_(command)/lgMTlIES">TREE</a>: Display a directory tree.</li> <li><a href="/facts/XCOPY/GahX3j5N">XCOPY</a>: Extended file copy.</li></ul> <p>Standard DOS device drivers: </p> <ul><li><a href="/facts/ANSI.SYS/4pFg4YkS">ANSI.SYS</a>: ANSI console driver.</li> <li><a href="/facts/EMM386.EXE/PrSsvGNl">EMM386.EXE</a>: Expanded memory manager.</li> <li><a href="/facts/HIMEM.SYS/wjhQoVya">HIMEM.SYS</a>: Extended memory manager.</li> <li><a href="/facts/RAMDRIVE.SYS/dUx1PPEM">RAMDRIVE.SYS</a> / <a href="/facts/VDISK.SYS/dUx1PPEM">VDISK.SYS</a>: RAM disk; VDISK.SYS is in older versions of MS DOS</li></ul>