Explain about wildcard character in dos, Computer Engineering

Assignment Help:

Q. Explain about wildcard character in DOS?

Sometimes you may like to list files having similar names. Let as suppose that these files are present in a root directory of drive C. now if you use the command - DIR C: CHAPTER.*, it will list all files from drive C that have the name UNIT. In the same way, to list all '.DOC' files from the default drive, you can use the command - DIR *.DOC. the character '*' used in these commands is known as the wildcard character. This character selects any name (where * is used) in the command. In the 1st DIR command (DIR C: UNIT.*) it will choose any extension name. in the 2nd  command (DIR *.DOC), '*' choose any file name having  .DOC extension name. the '*' wildcard character can also be used in another way. Assume the command - DIR WCHAP*. This command list all file names that start with WCHAP from the current drive. For example, it will list filenames, such as WUNIT1, UNIT 10.DOC, WUNIT­_A.RAP, etc.

            You can also use a different wildcard character - '?'.

C:\> DIR sale?rep

This command will list filenames such as SALE1REP, SALESREP, SALE_REP.rap, etc. that is, it will accept any character at the position of '?' in the DIR command.


Related Discussions:- Explain about wildcard character in dos

Binary search, Binary Search Now that the basic framework is working, ...

Binary Search Now that the basic framework is working, it is time to begin implementing a few alternative search functions. Each of these search algorithms have strengths and

How does computer know whether arriving frame has ARP msg, How does a compu...

How does a computer know whether an arriving frame contains an ARP message? Explain. The type field into the frame header gives that the frame contains an ARP message. A sender

What is difference between cgi and java, CGI and JAVA are fundamentally dis...

CGI and JAVA are fundamentally dissimilar, and for most applications are NOT interchangable. CGI is a protocol for running programs on a WWW server. Whilst JAVA can also be us

Will case infer priority register if yes how give an example, Will case inf...

Will case infer priority register if yes how give an example? Yes case can infer priority register depending on coding style reg r; // Priority encoded mux, always @

Multiple instruction and multiple data stream (mimd), Multiple Instruction ...

Multiple Instruction and Multiple Data stream (MIMD): In this categorization, numerous processing elements and multiple control units are ordered as in MISD. However the differ

What is persistence, What is Persistence When you make an object, it e...

What is Persistence When you make an object, it exists for so long as you need it, but under no circumstances object exist when program terminates. While this makes sense at s

Discuss about the electronic computer, Discuss about the Electronic compute...

Discuss about the Electronic computer The first general function programmable electronic computer was the Electronic Numerical Integrator and Computer (ENIAC), built by John V

Explain the main characteristics of semiconductor memory, Explain the Main ...

Explain the Main characteristics of semiconductor memory Memory, with regard to computers, most commonly signifies to semiconductor devices whose contents can be accessed (whic

What is the most common biometrics, What is the most common biometrics? ...

What is the most common biometrics? The most common biometrics is the given below: Face geometry (Photo): In this the computer takes the picture of your face and matches t

What are the necessary elements of an e-banking site, What are the necessar...

What are the necessary elements of an e-banking site? E-banking systems rely upon a number of common elements or processes. The given list comprises many of the potential elem

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd