Bash Shell Scripting- test command and its usage | Comparison and file test operators

The video tutorial explains the use of the test command in shell scripting to validate conditions. It covers the syntax and usage of test command, comparison operators for numbers and strings, and the significance of exit status in command validation. Advanced usage with variables and the application of string and file test operators are also discussed.

What is the purpose of using double square braces in a test command?

• To provide an enhanced version for condition validation

• To enhance the readability of the code

• To ensure backward compatibility

• To simplify the syntax

Which operator would you use to compare two numbers for equality in a test command?

• -gt

• -ne

• -lt

• -eq

What does an exit status of 0 indicate when using the test command?

• The test command is pending

• The test command was successful

• The test command was not executed

• The test command failed

How can you reverse the result of a test condition?

• By using an exclamatory symbol

• By using a semicolon

• By using a colon

• By using a question mark

What does the -z operator check for in a string?

• If the string has zero length

• If the string is a valid path

• If the string is non-empty

• If the string contains numbers

Which operator would you use to check if a given path is a directory?

• -d

• -s

• -f

• -e

What does a non-zero exit status indicate when using the test command on a file path?

• The test command was successful

• The test command failed

• The path is a file

• The path is a directory