What is control statement in Linux?
The BASH shell has a set of conditional control structures that allow you to choose what Linux commands to execute.
…
Conditional Control Structures.
| Condition Control Structures: if, else, elif, case | Function |
|---|---|
| if command then command fi | if executes an action if its test command is true. |
What is a control statement?
A control statement is a statement that determines whether other statements will be executed. An if statement decides whether to execute another statement, or decides which of two statements to execute. A loop decides how many times to execute another statement.
What is control statement example?
For example, if the user input is 5, then case 5 will be executed. The break statement present in case 5 will pause execution of the switch statement after case 5 and the control will get transferred to the next statement after switch, which is: return 0; … These compound statements may contain control structures.
What are the three types of control statements?
There are three types of control statements:
- Conditional/Selection statements.
- Iteration/Loop statements.
- Jump statements.
What is here document in Linux?
In Linux, here document (also commonly referred to as heredoc) refers to a special block of code that contains multi-line strings that will be redirected to a command. … The command above is doing the same thing as the previous command in a much concise form.
How do I run a shell script?
Steps to write and execute a script
- Open the terminal. Go to the directory where you want to create your script.
- Create a file with . sh extension.
- Write the script in the file using an editor.
- Make the script executable with command chmod +x <fileName>.
- Run the script using ./<fileName>.
Which is not a example of control statement?
Explanation: exit() is not a flow control statement in Java.
Is process a control statement?
In the process of a program execution, the execution order of each statement has a direct impact on the results of the program. Moreover, many times we need to control the execution order of statements to achieve the function we want. …
What are the 3 types of loops?
Loops are control structures used to repeat a given section of code a certain number of times or until a particular condition is met. Visual Basic has three main types of loops: for.. next loops, do loops and while loops.
What is the another name of conditional statement?
The if-else statement in C language is used to execute the code if condition is true or false. It is also called two-way selection statement.
What is Loop statement?
A loop statement is a series of steps or sequence of statements executed repeatedly zero or more times satisfying the given condition is satisfied. Loop statements in programming languages, such as assembly languages or PERL make use of LABEL’s to execute the statement repeatedly.