DOS - (Disk Operating System)
WHAT IS DOS?
Dos is a disk operating system with a set of programs that act as a translator between the user
and the computer in order to perform the task of the user. Ms-Dos is a popular operating system
on Micro-Computers.
Dos commands are of two types:
Internal Commands:
Cls : This command is used to clear the screen.
Ver : This helps us to know the later version of dos.
Vol : This command shows the label of the current drive & and its serial number.
Date : This command display the current date. Also called as the system date.
Time : This command display the current time and also the message to enter the new time.
Dir : This command display the list of files and directory in the mentioned directory or drive.
Dir/P : This command show all the files pagewise. Once the screen is full of filename a message saying “press any key to continue” is displayed, he user can take his/ her own time o view the files & its details.
Dir/w : This command is used to display the content of disk i.e files width wise i.e:- five filenames perline.
Wild Characters : There are 2 wild characters.
?: denoted any one single characters.
* : denotes any no of characters.
Cls : This command is used to clear the screen.
Ver : This helps us to know the later version of dos.
Vol : This command shows the label of the current drive & and its serial number.
Date : This command display the current date. Also called as the system date.
Time : This command display the current time and also the message to enter the new time.
Dir : This command display the list of files and directory in the mentioned directory or drive.
Dir/P : This command show all the files pagewise. Once the screen is full of filename a message saying “press any key to continue” is displayed, he user can take his/ her own time o view the files & its details.
Dir/w : This command is used to display the content of disk i.e files width wise i.e:- five filenames perline.
Wild Characters : There are 2 wild characters.
?: denoted any one single characters.
* : denotes any no of characters.
Type : This command is used to see the content of a specific file on the screen.
Rename or Ren : This command is used to change the filename.
Del (Deleting) : This command is used to erase the file from the disk.
Copy : This commands is used to duplicate the content of one file in to another file.
Directories : A directories is a separate area on the disk to store some files.
Md<directory name>
Rd<removing directory>
Edit : is a Dos Editor. It is an internal command.
Rename or Ren : This command is used to change the filename.
Del (Deleting) : This command is used to erase the file from the disk.
Copy : This commands is used to duplicate the content of one file in to another file.
Directories : A directories is a separate area on the disk to store some files.
Md<directory name>
Rd<removing directory>
Edit : is a Dos Editor. It is an internal command.
External Commands :
External commands are ones which requires certain special Dos files for their execution.
Tree : This command display path and optionally list the content of each directory and sub directory
on the specified drive.
Sort : The sort filter reads input ,sorts the data and then writes the sorted data screen or to a file
or another device.
Find : Locates all the lines which contain a specific string of text in a file or files.
Print : This command used to print to content of the files.
Chkdsk: This command is used to display the report regarding the status of the disk.
Diskcopy: This command is used to copy the content of one disk to another.
Attrib : Each and every file has some attributes stored for it.
Backup: The hardisk can sometimes suffer a head crash. In such occasion all data on the disk is
lost and irrecoverable.
Format : To make a floppy or hardisk capable of storage.
Deltree: It is used to delete all files or directories from the drive or directory from drive or directory.
External commands are ones which requires certain special Dos files for their execution.
Tree : This command display path and optionally list the content of each directory and sub directory
on the specified drive.
Sort : The sort filter reads input ,sorts the data and then writes the sorted data screen or to a file
or another device.
Find : Locates all the lines which contain a specific string of text in a file or files.
Print : This command used to print to content of the files.
Chkdsk: This command is used to display the report regarding the status of the disk.
Diskcopy: This command is used to copy the content of one disk to another.
Attrib : Each and every file has some attributes stored for it.
Backup: The hardisk can sometimes suffer a head crash. In such occasion all data on the disk is
lost and irrecoverable.
Format : To make a floppy or hardisk capable of storage.
Deltree: It is used to delete all files or directories from the drive or directory from drive or directory.