How to use the bc command: 2-Minute Linux Tip

The video tutorial introduces the BC command, a command line calculator. It covers basic usage, including starting and exiting BC, performing simple and complex calculations, using parentheses for operation precedence, and separating equations with a semicolon. The tutorial also explains how to assign values to variables for reuse in calculations and how to set the number of decimal places in results using the scale value. The video concludes with a practical example of calculating costs using an hourly rate.

What is the primary function of the BC command?

• To browse the internet

• To manage files

• To perform calculations

• To edit text files

How can you exit the BC command line calculator?

• By typing 'exit'

• By typing 'quit'

• By closing the terminal

• By pressing 'Ctrl + C'

In BC, how do you ensure that subtraction is performed before multiplication?

• By using parentheses

• By using curly braces

• By using square brackets

• By using angle brackets

What symbol is used in BC to separate multiple equations?

• Colon

• Period

• Comma

• Semicolon

How can you control the number of decimal places in BC results?

• By using the 'precision' command

• By using the 'scale' value

• By using the 'round' function

• By using the 'truncate' option