Bash Shell Scripting- Introduction to AWK

The video provides an introduction to the AWK programming language, explaining its dual use as a command and scripting language. It highlights AWK's role in Unix systems for text processing, demonstrating how to extract specific data from command outputs. The video covers the syntax of AWK commands, including options and pattern matching, and provides examples of using AWK for text manipulation. It concludes with a discussion on predefined variables and the flexibility of AWK in handling different input sources.

What is one of the key features of AWK as a programming language?

• It requires compilation.

• It can only be used as a command.

• It is only available on Windows systems.

• It allows the use of variables and functions.

In Unix-like systems, what is AWK primarily used for?

• Compiling code

• Networking

• Text processing

• Managing system resources

How can AWK be utilized according to the user's needs?

• Neither as a command nor a scripting language

• Both as a command and a scripting language

• Only as a scripting language

• Only as a command

What does AWK treat each line of input as?

• A single character

• A record

• A function

• A command

By default, how does AWK separate fields in a line?

• By semicolons

• By commas

• By spaces

• By tabs

What is the basic syntax structure for using AWK as a command?

• awk [options] 'pattern {action}' file

• awk 'pattern {action}' [options] file

• awk file 'pattern {action}' [options]

• awk 'pattern {action}' file [options]

What option is used in AWK to specify a field separator?

• -s

• -v

• -F

• -o

What happens if no pattern is specified in an AWK command?

• AWK will process every line

• AWK will process only the first line

• AWK will not execute

• AWK will process only the last line

Which predefined variable in AWK represents the entire input line?

• NF

• NR

• $1

• $0

What is the purpose of the -v option in AWK?

• To output the version of AWK

• To enable verbose mode

• To specify a field separator

• To define variable values