Mastering Linux Shell Scripting| IO redirection, read statement

I/O direction refers to the flow of data in and out of a computer program. It is essential to understand the direction of I/O in order to write efficient and effective code. The two main types of I/O direction are input and output. Input refers to the data that is being read into the program, while output refers to the data that is being produced by the program.

Read is a keyword in many programming languages that is used to retrieve data from a source and store it in a variable. In order to use the read function, you must specify the data source, such as a file or keyboard, and the format of the data, such as an integer or string. The read function then reads the data from the source and assigns it to the specified variable.

Code blocks are sections of code that are grouped together and executed as a unit. Code blocks can be used to define functions, loops, and conditional statements. Code blocks are important because they allow you to group related statements together, making your code easier to understand and maintain.

In this tutorial, we will go over the basics of I/O direction, read and code blocks and how they can be used in your programs. Whether you are a beginner or an experienced programmer, this tutorial will give you the tools you need to write efficient and effective code.

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