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Juli2301 [7.4K]
3 years ago
9

1)Write the command that moves the file data1 into the directory testdata:

Computers and Technology
1 answer:
mrs_skeptik [129]3 years ago
8 0
1) mv data1 testdata/
2) mv data1 ../
3) ls letters

These are the *nix commands. You can find out more by looking at their man pages. You can get more info about the man subsystem by running: man man
You might be interested in
Describe a strategy for avoiding nested conditionals. Give your own example of a nested conditional that can be modified to beco
Alex787 [66]

Answer:

One of the strategies to avoid nested conditional is to use logical expressions such as the use of AND & operator.

One strategy is to use an  interface class with a method. That method can be created to be used for a common functionality or purpose. This is also called strategy design pattern. You can move the chunk of conditional statement to that method. Then each class can implement that interface class and use that shared method according to their own required task by creating objects of sub classes and call that common method for any such object. This is called polymorphism.

Explanation:

Nested conditionals refers to the use of if or else if statement inside another if or else if statement or you can simply say a condition inside another condition. For example:

if( condition1) {  

//executes when condition1 evaluates to true

  if(condition2) {

//executes when condition1  and condition2 evaluate to true

  }  else if(condition3) {

 //when condition1 is true and condition3 is true

} else {

 //condition1  is true but neither condition2 nor conditions3 are true

}  }

The deeply nested conditionals make the program difficult to understand or read if the nested conditionals are not indented properly. Also the debugging gets difficult when the program has a lot of nested conditionals.

So in order to avoid nested conditionals some strategies are used such as using a switch statement.

Here i will give an example of the strategies i have mentioned in the answer.

Using Logical Expressions:

A strategy to avoid nested conditionals is to use logical expressions with logical operators such as AND operator. The above described example of nested conditionals can be written as:

if(condition1 && condition2){  //this executes only when both condition1 and condition2 are true

} else if(condition1 && condition3) {

this executes only when both condition1 and condition3 are true

} else if(condition1 ){

//condition1  is true but neither condtion2 nor condtion3 are true  }

This can further be modified to one conditional as:

if(!condition3){

// when  condition1 and condition2 are true

}

else

// condition3 is true

Now lets take a simple example of deciding to go to school or not based on some conditions.

if (temperature< 40)

{

   if (busArrived=="yes")

   {

       if (!sick)

       {

           if (homework=="done")

           {

               printf("Go to school.");

           }

       }                    

   }

}

This uses nested conditionals. This can be changed to a single conditional using AND logical operator.

if ((temperature <40) && (busArrived=="yes") &&

(!sick) && (homework=="done"))

{    cout<<"Eligible for promotion."; }

The second strategy is to use an interface. For example you can

abstract class Shape{

//declare a method common to all sub classes

  abstract public int area();

// same method that varies by formula of area for different shapes

}

class Triangle extends Shape{

  public int area() {

     // version of area code for Triangle

return (width * height / 2);

  }

}

class Rectangle extends Shape{

  public int area() {

     // version of area code for Rectangle

    return (width * height)

  }

}

// Now simply create Rectangle or Triangle objects and call area() for any such object and the relevant version will be executed.

4 0
3 years ago
The advancement in speed of transportation is attributed to invention of this device
morpeh [17]
The automobile is the invention
3 0
3 years ago
What is the role of the W3C? Group of answer choices oversee research and set standards for many areas of the Internet supervise
Murljashka [212]

Answer:

oversee research and set standards for many areas of the Internet

Explanation:

World Wide Web Consortium was created to maintain a standard order in the cyber world. It is an international community formed by the organizations as a member. W3C sets the standards of the websites and enables them to function and appear the same in every web browser. A specific standard of guidelines, rules, and protocols are fixed so that the World Wide Web can function and grow respectively.

5 0
3 years ago
Why are you unable to modify the budget file, when you have the allow full control ntfs permission?
Alinara [238K]

I don't really know the perfect answer to this but I would say because of todays technonlogy


3 0
3 years ago
1.1 Why is primary goal of software development now shifting from
lidiya [134]

is where the term ‘App’ comes from. It is any piece of software that allows us to actually ‘use’ the computer. For example, it may be a word processor, web browser, spreadsheet software or even just a game. Application software relates to the user rather than the hardware

5 0
3 years ago
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