Bash Shell Scripting- Basic String operations

The video tutorial covers basic operations on strings in shell scripting. It explains how to define and assign string variables, display their values, find string lengths, concatenate strings, convert cases, replace parts of strings, and slice strings to extract substrings. The tutorial emphasizes best practices, such as using double quotations and curly braces, and demonstrates various commands and syntaxes to achieve these operations.

What is the recommended practice when assigning a string with spaces to a variable?

• Use single quotes

• Use no quotes

• Use double quotes

• Use backticks

Which command is used to display the value of a string variable?

• ECHO

• DISPLAY

• SHOW

• PRINT

What is the purpose of using curly braces when finding the length of a string?

• To count spaces as characters

• To make the code look cleaner

• To avoid syntax errors

• To ensure the correct variable is used

How can you concatenate two strings in shell scripting?

• Using the plus (+) operator

• Using the ampersand (&) operator

• Using the pipe (|) operator

• By placing them next to each other

Which command can be used to convert a string to uppercase?

• upper

• convert

• tr

• toupper

What is the result of replacing 'Shell' with 'Bash' in the string 'Shell scripting'?

• Scripting Bash

• Bash Shell

• Shell Bash

• Bash scripting

How do you extract a substring starting from the second character?

• Use the cut command

• Use the slice command

• Use the substring command

• Use the variable with index

What is the index of the first character in a string in shell scripting?

• 1

• -1

• 2

• 0

Which command can be used to replace a part of a string?

• change

• replace

• substitute

• sed

What is the best practice for ensuring clarity when concatenating variables?

• Use parentheses

• Use backticks

• Use curly braces

• Use single quotes