Practicals Steps on Computer Operating System

PRACTICAL 2
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BREAK – Sets or clear extended CTRL + C checking. The Syntax is C:\>break
DIR – This is used to view files and directory on the screen in ms-dos environment. The Syntax is C:\>dir
CD – This is used to change a directory. The Syntax is
RD – This is used to remove any unwanted directory. The Syntax is C:\>RD My File
PROMPT – This is just the command line. Example C:\>, A:\>, D:\> etc.
TIME – This is used to view or set the system time. The syntax is C:\>
TYPE – This Command will dump the contents of a text file to your screen. The Syntax is C:\type file.txt
VER – This is used to view Operating System Version or the Windows version.
VERIFY – This Tells Windows whether to verify that your files are written correctly to a disk. The Syntax is C:\> VERIFY ON or C:\> VERIFY OFF
COPY – This command copies one or more files to another location. The Syntax is C:\> Ass.Doc A:
CLS – This command is used to clear the screen. The syntax is C:\> Cls
CITY –
DATA –
SET – Set gives you control of environment settings. The Syntax is C:\> SET string1 =string2
EXIT - Quits the CMD.EXE program (command interpreter). The Syntax is C:\> Exit
MD – This is Command is used to make or create a directory. C:\> MD My File
PATH – This Command displays or sets a search path for executable files. The Syntax is C:\> Path
REN – This command is used to rename a directory that is already created. The Syntax is C:\> REN OLD NEW
ERASE – This command is used to deletes one or more files. The Syntax is C:\> ERASE My File
VOL – This command is used to displays a disk volume label and serial number. The Syntax is C:\> VOL or A:\> VOL
DEL – This Command is used to deletes one or more files. The Syntax is C:\> DEL My File

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• Microsoft Windows Vista
• Microsoft Windows 98
• Microsoft Windows 2000 Professionals
• Microsoft Windows XP 2002 Professionals
• UNIX Operating System.

To change directory in UNIX Operating System, we type chdir. While