How to use the command `hr` (with examples)
The hr command is a simple tool that allows you to print a horizontal rule in the terminal. It can be useful for visually separating sections in your terminal output or for adding some visual distinction to your command-line applications. The hr command is a handy utility that is easy to use and can greatly improve the readability of your terminal output.
Use case 1: Print a horizontal rule
Code:
hr
Motivation:
Sometimes, when working on the command line, it can be difficult to visually separate different sections of output or to distinguish between different parts of a long log file. Using the hr command, you can easily add a horizontal rule to your output, making it easier to read and understand. This can improve the overall clarity and organization of your terminal output.
Explanation:
The hr command takes no arguments. When you run the command hr without any additional arguments, it simply prints a horizontal rule in the terminal. The horizontal rule consists of a series of dashes (-) that span the width of the terminal window.
Example output:
-----------------------------------------------------------
Use case 2: Print a horizontal rule with a custom string
Code:
hr "Section 1"
Motivation:
While the default horizontal rule is useful, it can be even more powerful when combined with a custom string. By including a custom string with the hr command, you can label different sections of your terminal output, making it easier to understand the context of the information you are viewing.
Explanation:
In this use case, we provide a custom string (“Section 1”) as an argument to the hr command. The hr command will print the custom string above the horizontal rule, allowing you to label the different sections of your output.
Example output:
Section 1
-----------------------------------------------------------
Use case 3: Print a multiline horizontal rule
Code:
hr "Section A" "Section B" "Section C"
Motivation:
Sometimes, you may have multiple sections in your terminal output that you want to label and separate. In such cases, you can use the hr command with multiple arguments to print a multiline horizontal rule. This will create a horizontal rule with multiple custom strings, each on a separate line.
Explanation:
In this use case, we provide multiple custom strings (“Section A”, “Section B”, and “Section C”) as arguments to the hr command. The hr command will print each custom string on a separate line, followed by a horizontal rule separating the sections.
Example output:
Section A
-----------------------------------------------------------
Section B
-----------------------------------------------------------
Section C
-----------------------------------------------------------
Conclusion:
The hr command is a simple yet powerful tool for printing horizontal rules in the terminal. It can greatly improve the readability and organization of your terminal output by visually separating different sections and providing context with custom strings. Whether you are working on a command-line application or just executing commands in the terminal, the hr command can be a valuable addition to your toolbox.
