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

Average number of instructions, Consider a processor with a 4-stage pipelin...

Consider a processor with a 4-stage pipeline. Each  time a conditional branch is encountered, the pipeline must be flushed (3 partially completed instructions are lost). Determine

Explain the working of a two input EX-OR gate, With relevant logic diagram ...

With relevant logic diagram and truth table explain the working of a two input EX-OR gate. Ans. 2-Input EX-OR Gate: An EX-OR or Exclusive gate recognizes words that have an od

What is sgml, SGML is very large, influential, and difficult. It has been i...

SGML is very large, influential, and difficult. It has been in important industrial and commercial use for nearly two decades, and there is a important body of expertise and softwa

By which analog signal combine with a carrier frequency, Analog signals can...

Analog signals can be              by combining them with a carrier frequency (A)  Carried                                      (B)  Transported (C)  Multiplexed

Computer graphics, explain area sub division method algorithm

explain area sub division method algorithm

Dbms, types of lock

types of lock

Different ways in which a thread can be cancelled, What are the different w...

What are the different ways in which a thread can be cancelled?  Cancellation of a target thread may occur in two different scenarios: Asynchronous cancellation: One thre

Program in java, Write a program to display grade message according to the ...

Write a program to display grade message according to the marks

What is a deadlock, What is a Deadlock? Deadlock is a situation, in th...

What is a Deadlock? Deadlock is a situation, in that processes never complete executing and system resources are tied-up, preventing another job form starting. If the resou

Illustrate what is pascal''s principle, Illustrate what is pascal's princip...

Illustrate what is pascal's principle? Answer:- Pascal's Principle declares that the pressure is transmitted evenly through a liquid. That's why when you pump up a balloon

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