Bash Shell Scripting- Here Document for Multi-lines or Multi-line block

The video tutorial explains the concept of Here Document in shell scripting, detailing its syntax and usage. It demonstrates how to use Here Document with the CAT command to handle multi-line text blocks efficiently. The tutorial also covers advanced techniques, such as using different delimiters and redirecting output to files or other commands. Practical examples illustrate how to simplify multi-line outputs and integrate Here Document with system variables.

What is a here document primarily used for?

• Writing multiline blocks

• Writing single-line commands

• Executing binary files

• Compiling source code

Which command is commonly used with here documents to display multiline text?

• ECHO

• SED

• CAT

• GREP

How can you avoid using multiple ECHO commands to display multiline text?

• By using a here document with CAT

• By using a single GREP command

• By using a single SED command

• By using a single AWK command

What is the significance of the delimiter in a here document?

• It marks the start of the document

• It is used to compile the document

• It is used to end the document

• It is used to encrypt the document

What can be used as a delimiter in a here document?

• Only 'EOF'

• Any string

• Only system variables

• Only numeric values

How can the output of a here document be redirected to a file?

• By using the pipeline symbol

• By using the AWK command

• By using the GREP command

• By using the redirection operator

What is one advanced use of here documents?

• Encrypting data

• Compiling code

• Creating binary files

• Redirecting output as input for another command