The dos commands are classified into two types.
1. Internal commands.
cls, date , time, dir, copycon , md, cd, rd, copy, path, ren
del, prompt, vol, type, ver, etc..
2. External commands.
format,unformat,attrib, chkdsk, backup, restore,fdisk,diskcopy, edit,
label, scandisk, nove,more, fc, sort, deltree, undelete
Built-in the file called command.com. So the command.com file works as an interpreter as well as contains all the internal commands.
e.g. Date, Time, Cls, Dir etc....
- To display the system date and allows the user to change the system date.
- mm-dd-yy(month,date and year in 2 digits)
current date is:10-23-11
enter new date :
=> To display the system time and allowes the user to change the system time.
The format is
hh:mm:ss:ms a/p(hours:minutes:seconds:microseconds am/pm)
current time is: 7:00:05.50p
enter new time:
To clear the content or text in the screen cls command is used.
we can display the list of all the files using dir command. dir is nothing to display all the files and sub-directories.
dir/p => it will continue with the next set of files after any key is pressed.
dir/w => it will be display in coloumn wise
dir/on ----- the files are sorted according to the name of files,in ascending order
dir/o-n ------ desending order
dir/oe --- files are sorted according to the extension of file.
dir/od --- files are sorted according to the date &time of creation.recently created file will come first.
dir/os--- files are sorted according to the size of file.smallest file will come first
dir/o-s ----- files are sorted according to the size of file.largest file will come first
dir/l --- file names are displayed in lower case letters.
dir/b --- bare output. only file names
dir/s --- display all the files and subdirectories recursively.
Wild card symbols
* refers muliple character.
? refers to a single character.
dir a*.* ==> display all the files with "a" and can have any extension.
dir *.txt ==> display all the files with extension .txt.
we can create subdirectory into the main directory or into some other dirctory.
we can change the current working directory to some other directory.
This command is used to create a new file.whetever we have typed into the terminal is copied into the file name we have specified.
c:\copy con myfile
I want to learn MS DOS
1 file(s) copied
The type command is used to display all the contents of a file that has been already created
I want to learn MS DOS
If you want to delete or erase a file we can use delete or erase command.
We can copy the text of a file into another.like a carbon copy of a document we can make duplication copy.
copy old file name new file name
c:\copy myfile newfile
we can rename the existing file using the rename or ren command.
ren old file name new file name
c:\ren myfile file1
LABEL & VOL:
You can change the volume label by using 'LABEL' this command. VOL command displays the current volume name and serial number.
Deleting directory / folder
To remove a directory, it should be empty.
example: c:\rd myfolder