10. List of all dos commands with examples? There are plenty of DOS commands AVAILABLE to be used ACCORDING to their preference. Here is the list of most used ones:

• command /?–List switched to the DOS command
• type file.ext–To view the contents of the text file mentioned
• edit file.ext–To use the DOS editor to edit the file mentioned
• a: - Change to the mentioned directory
• md c:\diry–Create a new subdirectory named diryin the c:\ directory
• c:\ directory–To change the subdirectory diry
• rd c:\diry–Used to remove existing subdirectory named diry
• verify on–Turn on copy command verification
• copy file1 file2–Copy FILES of file1 to file2
• disk copy a: b: - To DUPLICATE a disk using the two mentioned floppy drives
• format a:- To format a disk in drive a:
• format a: /s–Format a bootable disk. It can include system files
• backup c:\ a: /s–To back up the entire c: to the a: drive
• chkdsk–To check disk and memory usage of the CURRENT disk
• mem–To check the memory usage

Internal & External DOS Command Interview Questions