1_MS-DOS (TOPIC 4 )

1_MS-DOS (TOPIC 4 )

1. APPLICATION OF WILDCARD

   • -MS-DOS provides wildcard to allow us to perform the same action on a group of files
     • 2 types of wildcards : ('?')-represents a letter ('*') - represents one or more letters
       • 1) *.txt > all files with the txt extension :e.g. File2.txt 11) Report.txt > all files named report but followed by any extension : e.g. Report.txt,Report.doc,Report.xls
         • 111) M*.* > beginning with M : e.g. Memo.txt,Meeting.doc 1111) ???.* > 3-letter names :e.g. Win.ini,Exp.sys,Sun.bmp

2. FILE & DIRECTORY NAME

   • - the length of name must not exceed 8 letters & max extension permitted must not exceed 3 letters
     • (a) not case -sensitive; no different in the use of small or capital letters (b) must be in the form of alphabets, number, symbols, & characters are not allowed
       • (c) not contain a blank space, comma, backslash and dot except dot in extension (d) name of a file must not be the same as of its directory

3. MS-DOS COMMANDS

   • 9) DISKCOPY- used to copy the whole diskette on the another diskette : DISKCOPY [source drive:[target drive]]
     • 8) PRINTING A FILE - instruction for printing file : print [drive:][path][filename]
       • 7) DELETING A FILE - del (delete) is used : del [filename]
         • 6) CHANGING FILE NAME - to use is ren or rename : ren [old name][new name]
           • 5) COPYING FILE - steps : make sure u r in the Windows directory. Observe through its prompt, c: \windows> , to copy a file, copy c: \ windows\ unit2.doc c:\ lala & a message stating ' 1 file(S) copied' will be displayed
             • 4) TO CHNGE DRIVE
               • a: Floppy disk drive b: Sec floppy disk drive, if any; c: hard disk drive d: optical disk drive =certain comp might be 2 hard disk & the name of drive maybe changed: d: sec hard disk drive e: optical disk drive
               • 3) DELETING A DIRECTORY - to delete a directory is rd ( remove director )
                 • 2) CREATING A NEW DIRECTORY- use the md command
                   • 1) BASIC COMMANDS
                     • b) dir: contents of the directory
                       • a) ver: display a version of the OS
                       • c) cd: Directory change

4. IMPORTANT TERMS

   • -file
     • - direcrory ( folder)
       • - subdirectory
         • - root directory
           • - drive

5. ACESS TO MS-DOS

   • (a) click START button (b) click PROGRAM instruction
   • (c) click ACCESSORIES (d) click MS-DOS PROMPT submenu

6. INTRODUCTION

   • -DOS is the abbreviation for Disk Operating System produce by Microsoft for IBM PC use & was introduced in 1979
     • - first ver of DOS was DOS 1.0 & DOS 7.0 was produced in 1995

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